7x+9(2x-4)=79

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Solution for 7x+9(2x-4)=79 equation:


Simplifying
7x + 9(2x + -4) = 79

Reorder the terms:
7x + 9(-4 + 2x) = 79
7x + (-4 * 9 + 2x * 9) = 79
7x + (-36 + 18x) = 79

Reorder the terms:
-36 + 7x + 18x = 79

Combine like terms: 7x + 18x = 25x
-36 + 25x = 79

Solving
-36 + 25x = 79

Solving for variable 'x'.

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

Add '36' to each side of the equation.
-36 + 36 + 25x = 79 + 36

Combine like terms: -36 + 36 = 0
0 + 25x = 79 + 36
25x = 79 + 36

Combine like terms: 79 + 36 = 115
25x = 115

Divide each side by '25'.
x = 4.6

Simplifying
x = 4.6

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