Solve x+5+1*x+2*x+3+x+4*x+5+x+6/7=20

$$\frac { x + 5 + 1 \cdot x + 2 \cdot x + 3 + x + 4 \cdot x + 5 + x + 6 } { 7 } = 20$$

Solve for x

$$x = \frac{121}{10} = 12\frac{1}{10} = 12.1$$

Steps for Solving Linear Equation

Multiply both sides by 7.

$$x+5+1x+2x+3+x+4x+5+x+6=20\times 7$$

Combine x and 1x to get 2x.

$$2x+5+2x+3+x+4x+5+x+6=20\times 7$$

Combine 2x and 2x to get 4x.

$$4x+5+3+x+4x+5+x+6=20\times 7$$

Add 5 and 3 to get 8.

$$4x+8+x+4x+5+x+6=20\times 7$$

Combine 4x and x to get 5x.

$$5x+8+4x+5+x+6=20\times 7$$

Combine 5x and 4x to get 9x.

$$9x+8+5+x+6=20\times 7$$

Add 8 and 5 to get 13.

$$9x+13+x+6=20\times 7$$

Combine 9x and x to get 10x.

$$10x+13+6=20\times 7$$

Add 13 and 6 to get 19.

$$10x+19=20\times 7$$

Multiply 20 and 7 to get 140.

$$10x+19=140$$

Subtract 19 from both sides.

$$10x=140-19$$

Subtract 19 from 140 to get 121.

$$10x=121$$

Divide both sides by 10.

$$x=\frac{121}{10}$$