7(3x+9)=11-(x+3)

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Solution for 7(3x+9)=11-(x+3) equation:


Simplifying
7(3x + 9) = 11 + -1(x + 3)

Reorder the terms:
7(9 + 3x) = 11 + -1(x + 3)
(9 * 7 + 3x * 7) = 11 + -1(x + 3)
(63 + 21x) = 11 + -1(x + 3)

Reorder the terms:
63 + 21x = 11 + -1(3 + x)
63 + 21x = 11 + (3 * -1 + x * -1)
63 + 21x = 11 + (-3 + -1x)

Combine like terms: 11 + -3 = 8
63 + 21x = 8 + -1x

Solving
63 + 21x = 8 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
63 + 21x + x = 8 + -1x + x

Combine like terms: 21x + x = 22x
63 + 22x = 8 + -1x + x

Combine like terms: -1x + x = 0
63 + 22x = 8 + 0
63 + 22x = 8

Add '-63' to each side of the equation.
63 + -63 + 22x = 8 + -63

Combine like terms: 63 + -63 = 0
0 + 22x = 8 + -63
22x = 8 + -63

Combine like terms: 8 + -63 = -55
22x = -55

Divide each side by '22'.
x = -2.5

Simplifying
x = -2.5

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