3+2x+5x-15=20

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Solution for 3+2x+5x-15=20 equation:


Simplifying
3 + 2x + 5x + -15 = 20

Reorder the terms:
3 + -15 + 2x + 5x = 20

Combine like terms: 3 + -15 = -12
-12 + 2x + 5x = 20

Combine like terms: 2x + 5x = 7x
-12 + 7x = 20

Solving
-12 + 7x = 20

Solving for variable 'x'.

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

Add '12' to each side of the equation.
-12 + 12 + 7x = 20 + 12

Combine like terms: -12 + 12 = 0
0 + 7x = 20 + 12
7x = 20 + 12

Combine like terms: 20 + 12 = 32
7x = 32

Divide each side by '7'.
x = 4.571428571

Simplifying
x = 4.571428571

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