3x+9=30-10x

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Solution for 3x+9=30-10x equation:


Simplifying
3x + 9 = 30 + -10x

Reorder the terms:
9 + 3x = 30 + -10x

Solving
9 + 3x = 30 + -10x

Solving for variable 'x'.

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

Add '10x' to each side of the equation.
9 + 3x + 10x = 30 + -10x + 10x

Combine like terms: 3x + 10x = 13x
9 + 13x = 30 + -10x + 10x

Combine like terms: -10x + 10x = 0
9 + 13x = 30 + 0
9 + 13x = 30

Add '-9' to each side of the equation.
9 + -9 + 13x = 30 + -9

Combine like terms: 9 + -9 = 0
0 + 13x = 30 + -9
13x = 30 + -9

Combine like terms: 30 + -9 = 21
13x = 21

Divide each side by '13'.
x = 1.615384615

Simplifying
x = 1.615384615

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