Answer:
x = 10
Step-by-step explanation:
x/2 + 4x/5= 13
Multiply each side by 10 to get rid of the fractions in the denominator
10(x/2 + 4x/5)= 13*10
Distribute
5x +2*4x = 130
5x+8x = 130
Combine like terms
13x = 130
Divide by 13
13x/13 = 130/13
x = 10
