Solve 90+(x-30)5.6+90+(10-x-30)3.6=225

$$90 + ( x - 30 ) 5.6 + 90 + ( 10 - x - 30 ) 3.6 = 225$$

Solve for x

$$x=142.5$$

Steps for Solving Linear Equation

Use the distributive property to multiply x-30 by 5.6.

$$90+5.6x-168+90+\left(10-x-30\right)\times 3.6=225$$

Subtract 168 from 90 to get -78.

$$-78+5.6x+90+\left(10-x-30\right)\times 3.6=225$$

Add -78 and 90 to get 12.

$$12+5.6x+\left(10-x-30\right)\times 3.6=225$$

Subtract 30 from 10 to get -20.

$$12+5.6x+\left(-20-x\right)\times 3.6=225$$

Use the distributive property to multiply -20-x by 3.6.

$$12+5.6x-72-3.6x=225$$

Subtract 72 from 12 to get -60.

$$-60+5.6x-3.6x=225$$

Combine 5.6x and -3.6x to get 2x.

$$-60+2x=225$$

Add 60 to both sides.

$$2x=225+60$$

Add 225 and 60 to get 285.

$$2x=285$$

Divide both sides by 2.

$$x=\frac{285}{2}$$