7=3x-4(x+2)

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Solution for 7=3x-4(x+2) equation:


Simplifying
7 = 3x + -4(x + 2)

Reorder the terms:
7 = 3x + -4(2 + x)
7 = 3x + (2 * -4 + x * -4)
7 = 3x + (-8 + -4x)

Reorder the terms:
7 = -8 + 3x + -4x

Combine like terms: 3x + -4x = -1x
7 = -8 + -1x

Solving
7 = -8 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
7 + x = -8 + -1x + x

Combine like terms: -1x + x = 0
7 + x = -8 + 0
7 + x = -8

Add '-7' to each side of the equation.
7 + -7 + x = -8 + -7

Combine like terms: 7 + -7 = 0
0 + x = -8 + -7
x = -8 + -7

Combine like terms: -8 + -7 = -15
x = -15

Simplifying
x = -15

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