15x+21=7

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Solution for 15x+21=7 equation: 



15x+21=7

We move all terms to the left:

15x+21-(7)=0

We add all the numbers together, and all the variables

15x+14=0

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

15x=-14

x=-14/15

x=-14/15

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