Question

Find the value of y in the formula y=5a-3b c, if a=12,b=4,c=8

Answer 1

Y=5a-3b
Y=5(12)-3(4)
Y=60-12
Y=48

You don't have a sign between b and c in the equation, so I cannot help you with the last operation

Answer 2

So we start by substituting the numbers, y= 5(12)-3(12)(8)
y= -228