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-7x-28=2+8x
Use the distributive property to multiply -7 by x+4.
-7x-28-8x=2
Subtract 8x from both sides.
-15x-28=2
Combine -7x and -8x to get -15x.
-15x=2+28
Add 28 to both sides.
-15x=30
Add 2 and 28 to get 30.
x=\frac{30}{-15}
Divide both sides by -15.
x=-2
Divide 30 by -15 to get -2.