3+9x=4(x-7)

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Solution for 3+9x=4(x-7) equation:


Simplifying
3 + 9x = 4(x + -7)

Reorder the terms:
3 + 9x = 4(-7 + x)
3 + 9x = (-7 * 4 + x * 4)
3 + 9x = (-28 + 4x)

Solving
3 + 9x = -28 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
3 + 9x + -4x = -28 + 4x + -4x

Combine like terms: 9x + -4x = 5x
3 + 5x = -28 + 4x + -4x

Combine like terms: 4x + -4x = 0
3 + 5x = -28 + 0
3 + 5x = -28

Add '-3' to each side of the equation.
3 + -3 + 5x = -28 + -3

Combine like terms: 3 + -3 = 0
0 + 5x = -28 + -3
5x = -28 + -3

Combine like terms: -28 + -3 = -31
5x = -31

Divide each side by '5'.
x = -6.2

Simplifying
x = -6.2

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