Question

Evaluating the expression: 2(3x-5y) when x=-1 and y=3

Answer 1

-36

Explanation:

since you say x=-1and y=3, you will put 1 in where x is and 3 where y is ,that is 2(3×-1]-5×3)

2(-3-15) then you subtract the bracket, that is 3-15 and it will give you -18. Then you use the 2 outside the bracket to multiply -18 ,that is 2×-18then it will give -36

Answer 2

-36

Explanation:

2 [3(-1) - 5(3) ]

2 [-3-15]

2[-18]

-36