7(2+x)-3(x+4)=12

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Solution for 7(2+x)-3(x+4)=12 equation:


Simplifying
7(2 + x) + -3(x + 4) = 12
(2 * 7 + x * 7) + -3(x + 4) = 12
(14 + 7x) + -3(x + 4) = 12

Reorder the terms:
14 + 7x + -3(4 + x) = 12
14 + 7x + (4 * -3 + x * -3) = 12
14 + 7x + (-12 + -3x) = 12

Reorder the terms:
14 + -12 + 7x + -3x = 12

Combine like terms: 14 + -12 = 2
2 + 7x + -3x = 12

Combine like terms: 7x + -3x = 4x
2 + 4x = 12

Solving
2 + 4x = 12

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 + 4x = 12 + -2

Combine like terms: 2 + -2 = 0
0 + 4x = 12 + -2
4x = 12 + -2

Combine like terms: 12 + -2 = 10
4x = 10

Divide each side by '4'.
x = 2.5

Simplifying
x = 2.5

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