130=21x+4

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Solution for 130=21x+4 equation: 



130=21x+4

We move all terms to the left:

130-(21x+4)=0

We get rid of parentheses

-21x-4+130=0

We add all the numbers together, and all the variables

-21x+126=0

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

-21x=-126

x=-126/-21

x=+6

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