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

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

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

Solving
7 = 2 + 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 = 2 + 2x + -2x

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

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

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

Combine like terms: 2 + -7 = -5
-2x = -5

Divide each side by '-2'.
x = 2.5

Simplifying
x = 2.5

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