7(10+3x)=91

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Solution for 7(10+3x)=91 equation: 


Simplifying
7(10 + 3x) = 91
(10 * 7 + 3x * 7) = 91
(70 + 21x) = 91

Solving
70 + 21x = 91

Solving for variable 'x'.

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

Add '-70' to each side of the equation.
70 + -70 + 21x = 91 + -70

Combine like terms: 70 + -70 = 0
0 + 21x = 91 + -70
21x = 91 + -70

Combine like terms: 91 + -70 = 21
21x = 21

Divide each side by '21'.
x = 1

Simplifying
x = 1

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