-100=4(8x+7)

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Solution for -100=4(8x+7) equation:


Simplifying
-100 = 4(8x + 7)

Reorder the terms:
-100 = 4(7 + 8x)
-100 = (7 * 4 + 8x * 4)
-100 = (28 + 32x)

Solving
-100 = 28 + 32x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-32x' to each side of the equation.
-100 + -32x = 28 + 32x + -32x

Combine like terms: 32x + -32x = 0
-100 + -32x = 28 + 0
-100 + -32x = 28

Add '100' to each side of the equation.
-100 + 100 + -32x = 28 + 100

Combine like terms: -100 + 100 = 0
0 + -32x = 28 + 100
-32x = 28 + 100

Combine like terms: 28 + 100 = 128
-32x = 128

Divide each side by '-32'.
x = -4

Simplifying
x = -4

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