30=8x+42+15x

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Solution for 30=8x+42+15x equation:


Simplifying
30 = 8x + 42 + 15x

Reorder the terms:
30 = 42 + 8x + 15x

Combine like terms: 8x + 15x = 23x
30 = 42 + 23x

Solving
30 = 42 + 23x

Solving for variable 'x'.

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

Add '-23x' to each side of the equation.
30 + -23x = 42 + 23x + -23x

Combine like terms: 23x + -23x = 0
30 + -23x = 42 + 0
30 + -23x = 42

Add '-30' to each side of the equation.
30 + -30 + -23x = 42 + -30

Combine like terms: 30 + -30 = 0
0 + -23x = 42 + -30
-23x = 42 + -30

Combine like terms: 42 + -30 = 12
-23x = 12

Divide each side by '-23'.
x = -0.5217391304

Simplifying
x = -0.5217391304

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