3x-13=87-7x

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Solution for 3x-13=87-7x equation:


Simplifying
3x + -13 = 87 + -7x

Reorder the terms:
-13 + 3x = 87 + -7x

Solving
-13 + 3x = 87 + -7x

Solving for variable 'x'.

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

Add '7x' to each side of the equation.
-13 + 3x + 7x = 87 + -7x + 7x

Combine like terms: 3x + 7x = 10x
-13 + 10x = 87 + -7x + 7x

Combine like terms: -7x + 7x = 0
-13 + 10x = 87 + 0
-13 + 10x = 87

Add '13' to each side of the equation.
-13 + 13 + 10x = 87 + 13

Combine like terms: -13 + 13 = 0
0 + 10x = 87 + 13
10x = 87 + 13

Combine like terms: 87 + 13 = 100
10x = 100

Divide each side by '10'.
x = 10

Simplifying
x = 10

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