4x+5(x+7)=80

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Solution for 4x+5(x+7)=80 equation:


Simplifying
4x + 5(x + 7) = 80

Reorder the terms:
4x + 5(7 + x) = 80
4x + (7 * 5 + x * 5) = 80
4x + (35 + 5x) = 80

Reorder the terms:
35 + 4x + 5x = 80

Combine like terms: 4x + 5x = 9x
35 + 9x = 80

Solving
35 + 9x = 80

Solving for variable 'x'.

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

Add '-35' to each side of the equation.
35 + -35 + 9x = 80 + -35

Combine like terms: 35 + -35 = 0
0 + 9x = 80 + -35
9x = 80 + -35

Combine like terms: 80 + -35 = 45
9x = 45

Divide each side by '9'.
x = 5

Simplifying
x = 5

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