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which of the value of x satisfies the equation below -2x-7=12

A: x= -9.5

B: x= -9

C: x=9

d:x=9.5

Sagot :

Answer is A.
You start by adding the 7 to the opposite side. Giving you 19. You divide both sides by -2 which gives you x on one side and -9.5 on the other.

-2x-7=12
-2x=12(+7)
-2x=19
x=19/-2
x=-9.5
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