7(3x+7)+3(9-x)=

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Solution for 7(3x+7)+3(9-x)= equation:


Simplifying
7(3x + 7) + 3(9 + -1x) = 0

Reorder the terms:
7(7 + 3x) + 3(9 + -1x) = 0
(7 * 7 + 3x * 7) + 3(9 + -1x) = 0
(49 + 21x) + 3(9 + -1x) = 0
49 + 21x + (9 * 3 + -1x * 3) = 0
49 + 21x + (27 + -3x) = 0

Reorder the terms:
49 + 27 + 21x + -3x = 0

Combine like terms: 49 + 27 = 76
76 + 21x + -3x = 0

Combine like terms: 21x + -3x = 18x
76 + 18x = 0

Solving
76 + 18x = 0

Solving for variable 'x'.

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

Add '-76' to each side of the equation.
76 + -76 + 18x = 0 + -76

Combine like terms: 76 + -76 = 0
0 + 18x = 0 + -76
18x = 0 + -76

Combine like terms: 0 + -76 = -76
18x = -76

Divide each side by '18'.
x = -4.222222222

Simplifying
x = -4.222222222

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