7-x=4(x+3)

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Solution for 7-x=4(x+3) equation:


Simplifying
7 + -1x = 4(x + 3)

Reorder the terms:
7 + -1x = 4(3 + x)
7 + -1x = (3 * 4 + x * 4)
7 + -1x = (12 + 4x)

Solving
7 + -1x = 12 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
7 + -1x + -4x = 12 + 4x + -4x

Combine like terms: -1x + -4x = -5x
7 + -5x = 12 + 4x + -4x

Combine like terms: 4x + -4x = 0
7 + -5x = 12 + 0
7 + -5x = 12

Add '-7' to each side of the equation.
7 + -7 + -5x = 12 + -7

Combine like terms: 7 + -7 = 0
0 + -5x = 12 + -7
-5x = 12 + -7

Combine like terms: 12 + -7 = 5
-5x = 5

Divide each side by '-5'.
x = -1

Simplifying
x = -1

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