7x-15=4x+30

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Solution for 7x-15=4x+30 equation:


Simplifying
7x + -15 = 4x + 30

Reorder the terms:
-15 + 7x = 4x + 30

Reorder the terms:
-15 + 7x = 30 + 4x

Solving
-15 + 7x = 30 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
-15 + 7x + -4x = 30 + 4x + -4x

Combine like terms: 7x + -4x = 3x
-15 + 3x = 30 + 4x + -4x

Combine like terms: 4x + -4x = 0
-15 + 3x = 30 + 0
-15 + 3x = 30

Add '15' to each side of the equation.
-15 + 15 + 3x = 30 + 15

Combine like terms: -15 + 15 = 0
0 + 3x = 30 + 15
3x = 30 + 15

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

Divide each side by '3'.
x = 15

Simplifying
x = 15

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