42=2.5*x+x

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Solution for 42=2.5*x+x equation:


Simplifying
42 = 2.5x + x

Combine like terms: 2.5x + x = 3.5x
42 = 3.5x

Solving
42 = 3.5x

Solving for variable 'x'.

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

Add '-3.5x' to each side of the equation.
42 + -3.5x = 3.5x + -3.5x

Combine like terms: 3.5x + -3.5x = 0.0
42 + -3.5x = 0.0

Add '-42' to each side of the equation.
42 + -42 + -3.5x = 0.0 + -42

Combine like terms: 42 + -42 = 0
0 + -3.5x = 0.0 + -42
-3.5x = 0.0 + -42

Combine like terms: 0.0 + -42 = -42
-3.5x = -42

Divide each side by '-3.5'.
x = 12

Simplifying
x = 12

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