Solve and Graph Linear Inequalities
7th Grade Math · Flashcards
7TH GRADE MATH · FLASHCARDS
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QUESTION
What inequality represents: "You have
20
20
20
dollars and spend
3
x
3x
3
x
; you want more than
5
5
5
left"?
QUESTION
Solve the inequality
3
x
+
5
>
20
3x + 5 > 20
3
x
+
5
>
20
.
QUESTION
Solve the inequality
−
2
x
+
1
>
9
-2x + 1 > 9
−
2
x
+
1
>
9
.
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ANSWER
x
<
−
4
x < -4
x
<
−
4
. Subtract 1, divide by -2 (flip sign):
−
2
x
>
8
-2x > 8
−
2
x
>
8
, so
x
<
−
4
x < -4
x
<
−
4
.
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