7(3x+1)=91

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Solution for 7(3x+1)=91 equation: 


Simplifying
7(3x + 1) = 91

Reorder the terms:
7(1 + 3x) = 91
(1 * 7 + 3x * 7) = 91
(7 + 21x) = 91

Solving
7 + 21x = 91

Solving for variable 'x'.

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

Add '-7' to each side of the equation.
7 + -7 + 21x = 91 + -7

Combine like terms: 7 + -7 = 0
0 + 21x = 91 + -7
21x = 91 + -7

Combine like terms: 91 + -7 = 84
21x = 84

Divide each side by '21'.
x = 4

Simplifying
x = 4

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