4-x=3(x-7)

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Solution for 4-x=3(x-7) equation:


Simplifying
4 + -1x = 3(x + -7)

Reorder the terms:
4 + -1x = 3(-7 + x)
4 + -1x = (-7 * 3 + x * 3)
4 + -1x = (-21 + 3x)

Solving
4 + -1x = -21 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
4 + -1x + -3x = -21 + 3x + -3x

Combine like terms: -1x + -3x = -4x
4 + -4x = -21 + 3x + -3x

Combine like terms: 3x + -3x = 0
4 + -4x = -21 + 0
4 + -4x = -21

Add '-4' to each side of the equation.
4 + -4 + -4x = -21 + -4

Combine like terms: 4 + -4 = 0
0 + -4x = -21 + -4
-4x = -21 + -4

Combine like terms: -21 + -4 = -25
-4x = -25

Divide each side by '-4'.
x = 6.25

Simplifying
x = 6.25

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