5x + 3 = 7x - 1

what is x

First lets subtract 3 from both sides. That gives us 5x = 7x-4. Then lets move the - 4 to the other side reversing the sign. 5x+4=7x. Now lets subtract 5x from both sides. That will give us 2x = 4. Now all we need to do as a last step is divide by 2. That will give us x = 2. That is how you solve it in a nutshell

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