4x+8=7.2+5x solve for x

x=0.8

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

4x+8=5x+7.2

Step 2: Subtract 5x from both sides.

4x+8−5x=5x+7.2−5x

−x+8=7.2

Step 3: Subtract 8 from both sides.

−x+8−8=7.2−8

−x=−0.8

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

v = 1/3 a^2h

step-by-step explanation:

the volume is 1/3 a^2h.