2x(7-2x)+5x(8-x)=3x(5-3x)-26

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Solution for 2x(7-2x)+5x(8-x)=3x(5-3x)-26 equation:


Simplifying
2x(7 + -2x) + 5x(8 + -1x) = 3x(5 + -3x) + -26
(7 * 2x + -2x * 2x) + 5x(8 + -1x) = 3x(5 + -3x) + -26
(14x + -4x2) + 5x(8 + -1x) = 3x(5 + -3x) + -26
14x + -4x2 + (8 * 5x + -1x * 5x) = 3x(5 + -3x) + -26
14x + -4x2 + (40x + -5x2) = 3x(5 + -3x) + -26

Reorder the terms:
14x + 40x + -4x2 + -5x2 = 3x(5 + -3x) + -26

Combine like terms: 14x + 40x = 54x
54x + -4x2 + -5x2 = 3x(5 + -3x) + -26

Combine like terms: -4x2 + -5x2 = -9x2
54x + -9x2 = 3x(5 + -3x) + -26
54x + -9x2 = (5 * 3x + -3x * 3x) + -26
54x + -9x2 = (15x + -9x2) + -26

Reorder the terms:
54x + -9x2 = -26 + 15x + -9x2

Add '9x2' to each side of the equation.
54x + -9x2 + 9x2 = -26 + 15x + -9x2 + 9x2

Combine like terms: -9x2 + 9x2 = 0
54x + 0 = -26 + 15x + -9x2 + 9x2
54x = -26 + 15x + -9x2 + 9x2

Combine like terms: -9x2 + 9x2 = 0
54x = -26 + 15x + 0
54x = -26 + 15x

Solving
54x = -26 + 15x

Solving for variable 'x'.

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

Add '-15x' to each side of the equation.
54x + -15x = -26 + 15x + -15x

Combine like terms: 54x + -15x = 39x
39x = -26 + 15x + -15x

Combine like terms: 15x + -15x = 0
39x = -26 + 0
39x = -26

Divide each side by '39'.
x = -0.6666666667

Simplifying
x = -0.6666666667

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