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

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


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

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

Remove parenthesis around (2 + 3x)
2 + 3x + -1(x + 4) = 7

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

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

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

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

Solving
-2 + 2x = 7

Solving for variable 'x'.

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

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

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

Combine like terms: 7 + 2 = 9
2x = 9

Divide each side by '2'.
x = 4.5

Simplifying
x = 4.5

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