3x+4x-45=3x-4x+45

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


Simplifying
3x + 4x + -45 = 3x + -4x + 45

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

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

Reorder the terms:
-45 + 7x = 45 + 3x + -4x

Combine like terms: 3x + -4x = -1x
-45 + 7x = 45 + -1x

Solving
-45 + 7x = 45 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
-45 + 7x + x = 45 + -1x + x

Combine like terms: 7x + x = 8x
-45 + 8x = 45 + -1x + x

Combine like terms: -1x + x = 0
-45 + 8x = 45 + 0
-45 + 8x = 45

Add '45' to each side of the equation.
-45 + 45 + 8x = 45 + 45

Combine like terms: -45 + 45 = 0
0 + 8x = 45 + 45
8x = 45 + 45

Combine like terms: 45 + 45 = 90
8x = 90

Divide each side by '8'.
x = 11.25

Simplifying
x = 11.25

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