what is the x value in 3x+7=4x-4

I need to find the X value in this equation.
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2 Answers

3x+7=4x-4

4x-3x=7+4

x=11
by

3x+7=4x-4

7+4=4x-3x (because when -4 crosses the equal to sign it becomes +4 and wen +3x and vice versa to the 3x)

11=x

so therefore x=11

by

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