X=(45-10x)*3

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Solution for X=(45-10x)*3 equation: 



X=(45-10X)*3

We move all terms to the left:

X-((45-10X)*3)=0

We add all the numbers together, and all the variables

X-((-10X+45)*3)=0



We calculate terms in parentheses: -((-10X+45)*3), so:

(-10X+45)*3

We multiply parentheses

-30X+135

Back to the equation:

-(-30X+135)



We get rid of parentheses

X+30X-135=0

We add all the numbers together, and all the variables

31X-135=0

We move all terms containing X to the left, all other terms to the right

31X=135

X=135/31

X=4+11/31

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