Solve x+6+x+9=4x+30

$$x + 6 + x + 9 = 4 x + 30$$

Solve for x

$$x = -\frac{15}{2} = -7\frac{1}{2} = -7.5$$

Steps for Solving Linear Equation

Combine x and x to get 2x.

$$2x+6+9=4x+30$$

Add 6 and 9 to get 15.

$$2x+15=4x+30$$

Subtract 4x from both sides.

$$2x+15-4x=30$$

Combine 2x and -4x to get -2x.

$$-2x+15=30$$

Subtract 15 from both sides.

$$-2x=30-15$$

Subtract 15 from 30 to get 15.

$$-2x=15$$

Divide both sides by -2.

$$x=\frac{15}{-2}$$

Fraction \frac{15}{-2} can be rewritten as -\frac{15}{2} by extracting the negative sign.

$$x=-\frac{15}{2}$$