99=3(7x+4)+3

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Solution for 99=3(7x+4)+3 equation:


Simplifying
99 = 3(7x + 4) + 3

Reorder the terms:
99 = 3(4 + 7x) + 3
99 = (4 * 3 + 7x * 3) + 3
99 = (12 + 21x) + 3

Reorder the terms:
99 = 12 + 3 + 21x

Combine like terms: 12 + 3 = 15
99 = 15 + 21x

Solving
99 = 15 + 21x

Solving for variable 'x'.

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

Add '-21x' to each side of the equation.
99 + -21x = 15 + 21x + -21x

Combine like terms: 21x + -21x = 0
99 + -21x = 15 + 0
99 + -21x = 15

Add '-99' to each side of the equation.
99 + -99 + -21x = 15 + -99

Combine like terms: 99 + -99 = 0
0 + -21x = 15 + -99
-21x = 15 + -99

Combine like terms: 15 + -99 = -84
-21x = -84

Divide each side by '-21'.
x = 4

Simplifying
x = 4

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