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

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

Solve for x

$$x=17$$

Steps for Solving Linear Equation

Multiply both sides by 7.

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

Combine x and x to get 2x.

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

Combine 2x and x to get 3x.

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

Add 1 and 2 to get 3.

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

Combine 3x and x to get 4x.

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

Add 3 and 3 to get 6.

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

Combine 4x and x to get 5x.

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

Add 6 and 4 to get 10.

$$5x+10+x+5+x+6=20\times 7$$

Combine 5x and x to get 6x.

$$6x+10+5+x+6=20\times 7$$

Add 10 and 5 to get 15.

$$6x+15+x+6=20\times 7$$

Combine 6x and x to get 7x.

$$7x+15+6=20\times 7$$

Add 15 and 6 to get 21.

$$7x+21=20\times 7$$

Multiply 20 and 7 to get 140.

$$7x+21=140$$

Subtract 21 from both sides.

$$7x=140-21$$

Subtract 21 from 140 to get 119.

$$7x=119$$

Divide both sides by 7.

$$x=\frac{119}{7}$$

Divide 119 by 7 to get 17.

$$x=17$$