Question

Help me please ASAP!

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Answer 1

a: x = -4, b : x = -4, c : x = -3, d : x = -5

Explanation:

Answer 2

divide both sides by the number in front of x
so
4x=-16
x=-4

12=-3x
x=-4

-21=7x
x=-3

6x=-30
x=-5