5*2+x*2=40

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Solution for 5*2+x*2=40 equation: 


Simplifying
5 * 2 + x * 2 = 40

Multiply 5 * 2
10 + x * 2 = 40

Reorder the terms for easier multiplication:
10 + 2x = 40

Solving
10 + 2x = 40

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 + 2x = 40 + -10

Combine like terms: 10 + -10 = 0
0 + 2x = 40 + -10
2x = 40 + -10

Combine like terms: 40 + -10 = 30
2x = 30

Divide each side by '2'.
x = 15

Simplifying
x = 15

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