20=7+9(x+3)

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Solution for 20=7+9(x+3) equation:


Simplifying
20 = 7 + 9(x + 3)

Reorder the terms:
20 = 7 + 9(3 + x)
20 = 7 + (3 * 9 + x * 9)
20 = 7 + (27 + 9x)

Combine like terms: 7 + 27 = 34
20 = 34 + 9x

Solving
20 = 34 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
20 + -9x = 34 + 9x + -9x

Combine like terms: 9x + -9x = 0
20 + -9x = 34 + 0
20 + -9x = 34

Add '-20' to each side of the equation.
20 + -20 + -9x = 34 + -20

Combine like terms: 20 + -20 = 0
0 + -9x = 34 + -20
-9x = 34 + -20

Combine like terms: 34 + -20 = 14
-9x = 14

Divide each side by '-9'.
x = -1.555555556

Simplifying
x = -1.555555556

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