9x+3=7x+45

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Solution for 9x+3=7x+45 equation:


Simplifying
9x + 3 = 7x + 45

Reorder the terms:
3 + 9x = 7x + 45

Reorder the terms:
3 + 9x = 45 + 7x

Solving
3 + 9x = 45 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
3 + 9x + -7x = 45 + 7x + -7x

Combine like terms: 9x + -7x = 2x
3 + 2x = 45 + 7x + -7x

Combine like terms: 7x + -7x = 0
3 + 2x = 45 + 0
3 + 2x = 45

Add '-3' to each side of the equation.
3 + -3 + 2x = 45 + -3

Combine like terms: 3 + -3 = 0
0 + 2x = 45 + -3
2x = 45 + -3

Combine like terms: 45 + -3 = 42
2x = 42

Divide each side by '2'.
x = 21

Simplifying
x = 21

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