4x+30=45-x

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Solution for 4x+30=45-x equation:


Simplifying
4x + 30 = 45 + -1x

Reorder the terms:
30 + 4x = 45 + -1x

Solving
30 + 4x = 45 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
30 + 4x + x = 45 + -1x + x

Combine like terms: 4x + x = 5x
30 + 5x = 45 + -1x + x

Combine like terms: -1x + x = 0
30 + 5x = 45 + 0
30 + 5x = 45

Add '-30' to each side of the equation.
30 + -30 + 5x = 45 + -30

Combine like terms: 30 + -30 = 0
0 + 5x = 45 + -30
5x = 45 + -30

Combine like terms: 45 + -30 = 15
5x = 15

Divide each side by '5'.
x = 3

Simplifying
x = 3

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