4.50+2.5x=12

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Solution for 4.50+2.5x=12 equation: 


Simplifying
4.50 + 2.5x = 12

Solving
4.50 + 2.5x = 12

Solving for variable 'x'.

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

Add '-4.50' to each side of the equation.
4.50 + -4.50 + 2.5x = 12 + -4.50

Combine like terms: 4.50 + -4.50 = 0.00
0.00 + 2.5x = 12 + -4.50
2.5x = 12 + -4.50

Combine like terms: 12 + -4.50 = 7.5
2.5x = 7.5

Divide each side by '2.5'.
x = 3

Simplifying
x = 3

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