7x-30+8x-30=30

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Solution for 7x-30+8x-30=30 equation:


Simplifying
7x + -30 + 8x + -30 = 30

Reorder the terms:
-30 + -30 + 7x + 8x = 30

Combine like terms: -30 + -30 = -60
-60 + 7x + 8x = 30

Combine like terms: 7x + 8x = 15x
-60 + 15x = 30

Solving
-60 + 15x = 30

Solving for variable 'x'.

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

Add '60' to each side of the equation.
-60 + 60 + 15x = 30 + 60

Combine like terms: -60 + 60 = 0
0 + 15x = 30 + 60
15x = 30 + 60

Combine like terms: 30 + 60 = 90
15x = 90

Divide each side by '15'.
x = 6

Simplifying
x = 6

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