-42=2x-7(3x-13)

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Solution for -42=2x-7(3x-13) equation:


Simplifying
-42 = 2x + -7(3x + -13)

Reorder the terms:
-42 = 2x + -7(-13 + 3x)
-42 = 2x + (-13 * -7 + 3x * -7)
-42 = 2x + (91 + -21x)

Reorder the terms:
-42 = 91 + 2x + -21x

Combine like terms: 2x + -21x = -19x
-42 = 91 + -19x

Solving
-42 = 91 + -19x

Solving for variable 'x'.

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

Add '19x' to each side of the equation.
-42 + 19x = 91 + -19x + 19x

Combine like terms: -19x + 19x = 0
-42 + 19x = 91 + 0
-42 + 19x = 91

Add '42' to each side of the equation.
-42 + 42 + 19x = 91 + 42

Combine like terms: -42 + 42 = 0
0 + 19x = 91 + 42
19x = 91 + 42

Combine like terms: 91 + 42 = 133
19x = 133

Divide each side by '19'.
x = 7

Simplifying
x = 7

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