3(5+4x)=8x+7

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Solution for 3(5+4x)=8x+7 equation:


Simplifying
3(5 + 4x) = 8x + 7
(5 * 3 + 4x * 3) = 8x + 7
(15 + 12x) = 8x + 7

Reorder the terms:
15 + 12x = 7 + 8x

Solving
15 + 12x = 7 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
15 + 12x + -8x = 7 + 8x + -8x

Combine like terms: 12x + -8x = 4x
15 + 4x = 7 + 8x + -8x

Combine like terms: 8x + -8x = 0
15 + 4x = 7 + 0
15 + 4x = 7

Add '-15' to each side of the equation.
15 + -15 + 4x = 7 + -15

Combine like terms: 15 + -15 = 0
0 + 4x = 7 + -15
4x = 7 + -15

Combine like terms: 7 + -15 = -8
4x = -8

Divide each side by '4'.
x = -2

Simplifying
x = -2

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