45-3x=7x

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Solution for 45-3x=7x equation:


Simplifying
45 + -3x = 7x

Solving
45 + -3x = 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.
45 + -3x + -7x = 7x + -7x

Combine like terms: -3x + -7x = -10x
45 + -10x = 7x + -7x

Combine like terms: 7x + -7x = 0
45 + -10x = 0

Add '-45' to each side of the equation.
45 + -45 + -10x = 0 + -45

Combine like terms: 45 + -45 = 0
0 + -10x = 0 + -45
-10x = 0 + -45

Combine like terms: 0 + -45 = -45
-10x = -45

Divide each side by '-10'.
x = 4.5

Simplifying
x = 4.5

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