Standard 4.0: Students simplify expressions before solving linear equations and inequalities in one variable, such as 3(2x-5) 4(x-2) = 12

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Standard 4.0 Students simplify expressions
before solving linear equations and inequalities
in one variable, such as 3(2x-5) 4(x-2) 12
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These problems will involve solving equations and
inequalities. For equalities, you are solving for
the unknown variable. For inequalities, you are
once again getting the variable by itself,
remembering to flip the inequality sign when
multiplying both sides by a negative.
3
10
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Keep it POSITIVE!!! Move the smaller variable.
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Keep it POSITIVE!!! Move the smaller variable.
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Inequalities
Graphing Inequalities
0
2
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Solve and graph these linear inequalities.
SIGN FLIP
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2
-9
0
8
0
13 9
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Plot the numbers on number line. If the x is in
the middle, shade in between, watch out for
open\closed circle.
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Solve, for and problems, you got to work on ALL
PARTS!!! Plot the numbers on number line. If the
x is in the middle, shade in between, watch out
for open\closed circle.
Note, if your inequalities are not in the same
direction, you messed up.
mess
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DIVIDE BY NEGATIVE, DOUBLE SIGN FLIP!!!
Solve, for and problems, you got to work on ALL
PARTS!!! Plot the numbers on number line. If the
x is in the middle, shade in between, watch out
for open\closed circle.
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OR
DIVIDE BY NEGATIVE, DOUBLE SIGN FLIP!!!
Solve, for OR problems, do each part separately.
Dont combine them. Plot the numbers on number
line. Graph both on the same number line.
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Try the following problems and click to reveal
the answers.
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Solve and graph Try the following problems and
click to reveal the answers.
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SOLVE, and then graph it.
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• Related book problems
• Pg 390 20-31 59-67

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• Useful websites
• Equations ? http//www.math.com/school/subject2/le
  ssons/S2U3L1GL.html
• Inequalities ? http//www.math.com/school/subject2
  /lessons/S2U3L4GL.html