4x-9+3x-12=63

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Solution for 4x-9+3x-12=63 equation:


Simplifying
4x + -9 + 3x + -12 = 63

Reorder the terms:
-9 + -12 + 4x + 3x = 63

Combine like terms: -9 + -12 = -21
-21 + 4x + 3x = 63

Combine like terms: 4x + 3x = 7x
-21 + 7x = 63

Solving
-21 + 7x = 63

Solving for variable 'x'.

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

Add '21' to each side of the equation.
-21 + 21 + 7x = 63 + 21

Combine like terms: -21 + 21 = 0
0 + 7x = 63 + 21
7x = 63 + 21

Combine like terms: 63 + 21 = 84
7x = 84

Divide each side by '7'.
x = 12

Simplifying
x = 12

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