3x+9+4x+x=7x+2

Solution for 3x+9+4x+x=7x+2 equation:

Simplifying
3x + 9 + 4x + x = 7x + 2

Reorder the terms:
9 + 3x + 4x + x = 7x + 2

Combine like terms: 3x + 4x = 7x
9 + 7x + x = 7x + 2

Combine like terms: 7x + x = 8x
9 + 8x = 7x + 2

Reorder the terms:
9 + 8x = 2 + 7x

Solving
9 + 8x = 2 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
9 + 8x + -7x = 2 + 7x + -7x

Combine like terms: 8x + -7x = 1x
9 + 1x = 2 + 7x + -7x

Combine like terms: 7x + -7x = 0
9 + 1x = 2 + 0
9 + 1x = 2

Add '-9' to each side of the equation.
9 + -9 + 1x = 2 + -9

Combine like terms: 9 + -9 = 0
0 + 1x = 2 + -9
1x = 2 + -9

Combine like terms: 2 + -9 = -7
1x = -7

Divide each side by '1'.
x = -7

Simplifying
x = -7