Fill in the blank to make a true equation
15+10=5(3+___)

2

Step-by-step explanation:

15+10=5(3+_)

25=5(3+_)

25 divide by 5 equals 5

5-3=2!

2

Step-by-step explanation:

When you distribute the 5 to the 3 and the 2 it makes 15 + 10 which is equal to the other side of the equation.

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:

a

step-by-step explanation: