5x+8x-42=105-8x

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Solution for 5x+8x-42=105-8x equation:


Simplifying
5x + 8x + -42 = 105 + -8x

Reorder the terms:
-42 + 5x + 8x = 105 + -8x

Combine like terms: 5x + 8x = 13x
-42 + 13x = 105 + -8x

Solving
-42 + 13x = 105 + -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.
-42 + 13x + 8x = 105 + -8x + 8x

Combine like terms: 13x + 8x = 21x
-42 + 21x = 105 + -8x + 8x

Combine like terms: -8x + 8x = 0
-42 + 21x = 105 + 0
-42 + 21x = 105

Add '42' to each side of the equation.
-42 + 42 + 21x = 105 + 42

Combine like terms: -42 + 42 = 0
0 + 21x = 105 + 42
21x = 105 + 42

Combine like terms: 105 + 42 = 147
21x = 147

Divide each side by '21'.
x = 7

Simplifying
x = 7

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