7=3x-4-1(x+2)

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Solution for 7=3x-4-1(x+2) equation:


Simplifying
7 = 3x + -4 + -1(x + 2)

Reorder the terms:
7 = 3x + -4 + -1(2 + x)
7 = 3x + -4 + (2 * -1 + x * -1)
7 = 3x + -4 + (-2 + -1x)

Reorder the terms:
7 = -4 + -2 + 3x + -1x

Combine like terms: -4 + -2 = -6
7 = -6 + 3x + -1x

Combine like terms: 3x + -1x = 2x
7 = -6 + 2x

Solving
7 = -6 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
7 + -2x = -6 + 2x + -2x

Combine like terms: 2x + -2x = 0
7 + -2x = -6 + 0
7 + -2x = -6

Add '-7' to each side of the equation.
7 + -7 + -2x = -6 + -7

Combine like terms: 7 + -7 = 0
0 + -2x = -6 + -7
-2x = -6 + -7

Combine like terms: -6 + -7 = -13
-2x = -13

Divide each side by '-2'.
x = 6.5

Simplifying
x = 6.5

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