3x/8=15will give brainliest

x = 40

Step-by-step explanation:

Subtracting a whole from a fraction

Rewrite the whole as a fraction using 8 as the denominator :

15 15 • 8

15 = —— = ——————

1 8

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

Adding fractions that have a common denominator :

Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

3x - (15 • 8) 3x - 120

————————————— = ————————

8 8

Pulling out like terms :

3x - 120 = 3 • (x - 40)

3 • (x - 40)

———————————— = 0

8

Now,to get rid of the denominator, Tiger multiplys both sides of the equation by the denominator.

3•(x-40)

———————— • 8 = 0 • 8

8

Now, on the left hand side, the 8 cancels out the denominator, while, on the right hand side, zero times anything is still zero.

The equation now takes the shape :

3 • (x-40) = 0

Equations which are never true:

Solve : 3 = 0

This equation has no solution.

A a non-zero constant never equals zero.

Solving a Single Variable Equation:

Solve : x-40 = 0

Add 40 to both sides of the equation :

x = 40

x = 40

Step-by-step explanation:

3x ÷ 8 = 15

Multiply 8 in both sides

3x = 120

Divide both sides by 3

x = 40

b.my answer is b.

brainliest