7+3+x=13

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Solution for 7+3+x=13 equation: 


Simplifying
7 + 3 + x = 13

Combine like terms: 7 + 3 = 10
10 + x = 13

Solving
10 + x = 13

Solving for variable 'x'.

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

Add '-10' to each side of the equation.
10 + -10 + x = 13 + -10

Combine like terms: 10 + -10 = 0
0 + x = 13 + -10
x = 13 + -10

Combine like terms: 13 + -10 = 3
x = 3

Simplifying
x = 3

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