7(3x+9)=7(6x-7)

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Solution for 7(3x+9)=7(6x-7) equation:


Simplifying
7(3x + 9) = 7(6x + -7)

Reorder the terms:
7(9 + 3x) = 7(6x + -7)
(9 * 7 + 3x * 7) = 7(6x + -7)
(63 + 21x) = 7(6x + -7)

Reorder the terms:
63 + 21x = 7(-7 + 6x)
63 + 21x = (-7 * 7 + 6x * 7)
63 + 21x = (-49 + 42x)

Solving
63 + 21x = -49 + 42x

Solving for variable 'x'.

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

Add '-42x' to each side of the equation.
63 + 21x + -42x = -49 + 42x + -42x

Combine like terms: 21x + -42x = -21x
63 + -21x = -49 + 42x + -42x

Combine like terms: 42x + -42x = 0
63 + -21x = -49 + 0
63 + -21x = -49

Add '-63' to each side of the equation.
63 + -63 + -21x = -49 + -63

Combine like terms: 63 + -63 = 0
0 + -21x = -49 + -63
-21x = -49 + -63

Combine like terms: -49 + -63 = -112
-21x = -112

Divide each side by '-21'.
x = 5.333333333

Simplifying
x = 5.333333333

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