2[6x-7(x-7)]=5x-21

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Solution for 2[6x-7(x-7)]=5x-21 equation:


Simplifying
2[6x + -7(x + -7)] = 5x + -21

Reorder the terms:
2[6x + -7(-7 + x)] = 5x + -21
2[6x + (-7 * -7 + x * -7)] = 5x + -21
2[6x + (49 + -7x)] = 5x + -21

Reorder the terms:
2[49 + 6x + -7x] = 5x + -21

Combine like terms: 6x + -7x = -1x
2[49 + -1x] = 5x + -21
[49 * 2 + -1x * 2] = 5x + -21
[98 + -2x] = 5x + -21

Reorder the terms:
98 + -2x = -21 + 5x

Solving
98 + -2x = -21 + 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
98 + -2x + -5x = -21 + 5x + -5x

Combine like terms: -2x + -5x = -7x
98 + -7x = -21 + 5x + -5x

Combine like terms: 5x + -5x = 0
98 + -7x = -21 + 0
98 + -7x = -21

Add '-98' to each side of the equation.
98 + -98 + -7x = -21 + -98

Combine like terms: 98 + -98 = 0
0 + -7x = -21 + -98
-7x = -21 + -98

Combine like terms: -21 + -98 = -119
-7x = -119

Divide each side by '-7'.
x = 17

Simplifying
x = 17

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