5x+45+7x=84

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Solution for 5x+45+7x=84 equation:


Simplifying
5x + 45 + 7x = 84

Reorder the terms:
45 + 5x + 7x = 84

Combine like terms: 5x + 7x = 12x
45 + 12x = 84

Solving
45 + 12x = 84

Solving for variable 'x'.

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

Add '-45' to each side of the equation.
45 + -45 + 12x = 84 + -45

Combine like terms: 45 + -45 = 0
0 + 12x = 84 + -45
12x = 84 + -45

Combine like terms: 84 + -45 = 39
12x = 39

Divide each side by '12'.
x = 3.25

Simplifying
x = 3.25

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