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What value of x satisfies the equation below? -2X - 7 =12

User LucaMus
by
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2 Answers

8 votes
8 votes

Answer:

x=-9.5

Explanation:

-2x-7=12

+7. +7

-2x=19

/-2. /-2

X= -9.5

User Clon
by
2.8k points
30 votes
30 votes

-2x - 7 = 12

Adding 7 at both sides of the equation, we get:

-2x - 7 + 7 = 12 + 7

-2x = 19

Dividing by -2 at both sides of the equation, we get:


\begin{gathered} (-2x)/(-2)=(19)/(-2) \\ x=-(19)/(2)=-9.5 \end{gathered}

User Coleman
by
2.6k points