9(x-4)+7=21-13

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Solution for 9(x-4)+7=21-13 equation:


Simplifying
9(x + -4) + 7 = 21 + -13

Reorder the terms:
9(-4 + x) + 7 = 21 + -13
(-4 * 9 + x * 9) + 7 = 21 + -13
(-36 + 9x) + 7 = 21 + -13

Reorder the terms:
-36 + 7 + 9x = 21 + -13

Combine like terms: -36 + 7 = -29
-29 + 9x = 21 + -13

Combine like terms: 21 + -13 = 8
-29 + 9x = 8

Solving
-29 + 9x = 8

Solving for variable 'x'.

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

Add '29' to each side of the equation.
-29 + 29 + 9x = 8 + 29

Combine like terms: -29 + 29 = 0
0 + 9x = 8 + 29
9x = 8 + 29

Combine like terms: 8 + 29 = 37
9x = 37

Divide each side by '9'.
x = 4.111111111

Simplifying
x = 4.111111111

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