3x+4x+15=45

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Solution for 3x+4x+15=45 equation:


Simplifying
3x + 4x + 15 = 45

Reorder the terms:
15 + 3x + 4x = 45

Combine like terms: 3x + 4x = 7x
15 + 7x = 45

Solving
15 + 7x = 45

Solving for variable 'x'.

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

Add '-15' to each side of the equation.
15 + -15 + 7x = 45 + -15

Combine like terms: 15 + -15 = 0
0 + 7x = 45 + -15
7x = 45 + -15

Combine like terms: 45 + -15 = 30
7x = 30

Divide each side by '7'.
x = 4.285714286

Simplifying
x = 4.285714286

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