7+3x=15+13

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Solution for 7+3x=15+13 equation: 


Simplifying
7 + 3x = 15 + 13

Combine like terms: 15 + 13 = 28
7 + 3x = 28

Solving
7 + 3x = 28

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-7' to each side of the equation.
7 + -7 + 3x = 28 + -7

Combine like terms: 7 + -7 = 0
0 + 3x = 28 + -7
3x = 28 + -7

Combine like terms: 28 + -7 = 21
3x = 21

Divide each side by '3'.
x = 7

Simplifying
x = 7

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