The difference between two numbers is 4. If twice the larger number x is equal to three more than three times the smaller number y, what is the value of 2x + 3y?

33

Step-by-step explanation:

x-y=4 or x=y+4

2x=3y+3 or x=1.5y+1.5

x=y+4 and x=1.5y+1.5 so

y+4=1.5y+1.5 or 2.5=0.5y or y=5

plug y=5 into x=y+4 and you get x=9

plug in y=5 and x=9 into 2x+3y and you get 2*9+3*5=18+15=33

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !

step-by-step explanation:

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