7x-45=4x-15

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Solution for 7x-45=4x-15 equation:


Simplifying
7x + -45 = 4x + -15

Reorder the terms:
-45 + 7x = 4x + -15

Reorder the terms:
-45 + 7x = -15 + 4x

Solving
-45 + 7x = -15 + 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.
-45 + 7x + -4x = -15 + 4x + -4x

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

Combine like terms: 4x + -4x = 0
-45 + 3x = -15 + 0
-45 + 3x = -15

Add '45' to each side of the equation.
-45 + 45 + 3x = -15 + 45

Combine like terms: -45 + 45 = 0
0 + 3x = -15 + 45
3x = -15 + 45

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

Divide each side by '3'.
x = 10

Simplifying
x = 10

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