3x+1.8x-42=15x

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Solution for 3x+1.8x-42=15x equation:


Simplifying
3x + 1.8x + -42 = 15x

Reorder the terms:
-42 + 3x + 1.8x = 15x

Combine like terms: 3x + 1.8x = 4.8x
-42 + 4.8x = 15x

Solving
-42 + 4.8x = 15x

Solving for variable 'x'.

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

Add '-15x' to each side of the equation.
-42 + 4.8x + -15x = 15x + -15x

Combine like terms: 4.8x + -15x = -10.2x
-42 + -10.2x = 15x + -15x

Combine like terms: 15x + -15x = 0
-42 + -10.2x = 0

Add '42' to each side of the equation.
-42 + 42 + -10.2x = 0 + 42

Combine like terms: -42 + 42 = 0
0 + -10.2x = 0 + 42
-10.2x = 0 + 42

Combine like terms: 0 + 42 = 42
-10.2x = 42

Divide each side by '-10.2'.
x = -4.117647059

Simplifying
x = -4.117647059

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