Question

What is the value of x in the equation 3 x - y = 30, when y = 15?
O 4
08
O 80
O 200

Answer 1

The value of x is 15. It looks complicated but if you just rewrite to equation so it says 3x-15=30 it looks was easier to understand! Explanation: 3•15=45 then 45-15 would be 30.