3(7+x)=10

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Solution for 3(7+x)=10 equation: 


Simplifying
3(7 + x) = 10
(7 * 3 + x * 3) = 10
(21 + 3x) = 10

Solving
21 + 3x = 10

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + 3x = 10 + -21

Combine like terms: 21 + -21 = 0
0 + 3x = 10 + -21
3x = 10 + -21

Combine like terms: 10 + -21 = -11
3x = -11

Divide each side by '3'.
x = -3.666666667

Simplifying
x = -3.666666667

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