(x+45)+3x=90

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Solution for (x+45)+3x=90 equation: 



(x+45)+3x=90

We move all terms to the left:

(x+45)+3x-(90)=0

We add all the numbers together, and all the variables

3x+(x+45)-90=0

We get rid of parentheses

3x+x+45-90=0

We add all the numbers together, and all the variables

4x-45=0

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

4x=45

x=45/4

x=11+1/4

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