Solve 7-{x+[4-(3x+1)]}=x+4

$$7 - \{ x + [ 4 - ( 3 x + 1 ) ] \} = x + 4$$

Solve for x

$$x=0$$

Steps for Solving Linear Equation

To find the opposite of 3x+1, find the opposite of each term.

$$7-\left(x+4-3x-1\right)=x+4$$

Combine x and -3x to get -2x.

$$7-\left(-2x+4-1\right)=x+4$$

Subtract 1 from 4 to get 3.

$$7-\left(-2x+3\right)=x+4$$

To find the opposite of -2x+3, find the opposite of each term.

$$7-\left(-2x\right)-3=x+4$$

The opposite of -2x is 2x.

$$7+2x-3=x+4$$

Subtract 3 from 7 to get 4.

$$4+2x=x+4$$

Subtract x from both sides.

$$4+2x-x=4$$

Combine 2x and -x to get x.

$$4+x=4$$

Subtract 4 from both sides.

$$x=4-4$$

Subtract 4 from 4 to get 0.

$$x=0$$