5x+9+5x-7x-15=30+15

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Solution for 5x+9+5x-7x-15=30+15 equation:


Simplifying
5x + 9 + 5x + -7x + -15 = 30 + 15

Reorder the terms:
9 + -15 + 5x + 5x + -7x = 30 + 15

Combine like terms: 9 + -15 = -6
-6 + 5x + 5x + -7x = 30 + 15

Combine like terms: 5x + 5x = 10x
-6 + 10x + -7x = 30 + 15

Combine like terms: 10x + -7x = 3x
-6 + 3x = 30 + 15

Combine like terms: 30 + 15 = 45
-6 + 3x = 45

Solving
-6 + 3x = 45

Solving for variable 'x'.

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

Add '6' to each side of the equation.
-6 + 6 + 3x = 45 + 6

Combine like terms: -6 + 6 = 0
0 + 3x = 45 + 6
3x = 45 + 6

Combine like terms: 45 + 6 = 51
3x = 51

Divide each side by '3'.
x = 17

Simplifying
x = 17

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