3(x-7)+13=4(5-x)

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Solution for 3(x-7)+13=4(5-x) equation:


Simplifying
3(x + -7) + 13 = 4(5 + -1x)

Reorder the terms:
3(-7 + x) + 13 = 4(5 + -1x)
(-7 * 3 + x * 3) + 13 = 4(5 + -1x)
(-21 + 3x) + 13 = 4(5 + -1x)

Reorder the terms:
-21 + 13 + 3x = 4(5 + -1x)

Combine like terms: -21 + 13 = -8
-8 + 3x = 4(5 + -1x)
-8 + 3x = (5 * 4 + -1x * 4)
-8 + 3x = (20 + -4x)

Solving
-8 + 3x = 20 + -4x

Solving for variable 'x'.

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

Add '4x' to each side of the equation.
-8 + 3x + 4x = 20 + -4x + 4x

Combine like terms: 3x + 4x = 7x
-8 + 7x = 20 + -4x + 4x

Combine like terms: -4x + 4x = 0
-8 + 7x = 20 + 0
-8 + 7x = 20

Add '8' to each side of the equation.
-8 + 8 + 7x = 20 + 8

Combine like terms: -8 + 8 = 0
0 + 7x = 20 + 8
7x = 20 + 8

Combine like terms: 20 + 8 = 28
7x = 28

Divide each side by '7'.
x = 4

Simplifying
x = 4

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