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

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


Simplifying
3x + -5 + 7x = 3(x + -4)

Reorder the terms:
-5 + 3x + 7x = 3(x + -4)

Combine like terms: 3x + 7x = 10x
-5 + 10x = 3(x + -4)

Reorder the terms:
-5 + 10x = 3(-4 + x)
-5 + 10x = (-4 * 3 + x * 3)
-5 + 10x = (-12 + 3x)

Solving
-5 + 10x = -12 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
-5 + 10x + -3x = -12 + 3x + -3x

Combine like terms: 10x + -3x = 7x
-5 + 7x = -12 + 3x + -3x

Combine like terms: 3x + -3x = 0
-5 + 7x = -12 + 0
-5 + 7x = -12

Add '5' to each side of the equation.
-5 + 5 + 7x = -12 + 5

Combine like terms: -5 + 5 = 0
0 + 7x = -12 + 5
7x = -12 + 5

Combine like terms: -12 + 5 = -7
7x = -7

Divide each side by '7'.
x = -1

Simplifying
x = -1

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