45-3x=30

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Solution for 45-3x=30 equation: 


Simplifying
45 + -3x = 30

Solving
45 + -3x = 30

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 + -3x = 30 + -45

Combine like terms: 45 + -45 = 0
0 + -3x = 30 + -45
-3x = 30 + -45

Combine like terms: 30 + -45 = -15
-3x = -15

Divide each side by '-3'.
x = 5

Simplifying
x = 5

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