2x+5x=18+3

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Solution for 2x+5x=18+3 equation: 


Simplifying
2x + 5x = 18 + 3

Combine like terms: 2x + 5x = 7x
7x = 18 + 3

Combine like terms: 18 + 3 = 21
7x = 21

Solving
7x = 21

Solving for variable 'x'.

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

Divide each side by '7'.
x = 3

Simplifying
x = 3

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