7(3x+4)=91

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Solution for 7(3x+4)=91 equation:


Simplifying
7(3x + 4) = 91

Reorder the terms:
7(4 + 3x) = 91
(4 * 7 + 3x * 7) = 91
(28 + 21x) = 91

Solving
28 + 21x = 91

Solving for variable 'x'.

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

Add '-28' to each side of the equation.
28 + -28 + 21x = 91 + -28

Combine like terms: 28 + -28 = 0
0 + 21x = 91 + -28
21x = 91 + -28

Combine like terms: 91 + -28 = 63
21x = 63

Divide each side by '21'.
x = 3

Simplifying
x = 3

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