If z=3 and z*y=12 what does y+5 equal

1 answer:

5 0

Z = 3 (This equation is a given)

z(y) = 12 ( This equation is also given)

3y = 12 (as z = 3, plug 3 into z)

3y/3 = 12/3 (isolate the y by dividing 3 to both sides)
* you divide 3 to both sides because of the equal sign. What you do to one side you do to the other
y = 4 (answer for y)

y + 5 (what you are solving for)

(4) + 5 = 9 (As y = 4, plug in 4 for y in this equation)

y + 5 = 9 (4 + 5 = 9, or addition property)

9 is your answer

hope this helps

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