Question

Can u plz do the 2 questions plz

Answer 1

1. 62

2. 35

Explanation:

1. Just substitute for x and y:

`3(5)(2) + 4(2)^3`

`30+4(8)`

`30+32`

`62`

2. Add 15 to both sides:

`3c-15+15 = 90+15`

`3c=105`

Then divide by 3:

`(3c)/(3) =(105)/(3)`

`c=(105)/(3) =35`

Answer 2

c=35

Explanation:

3c - 15 = 90

+15 = +15

3c = 105

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3. 3

c = 35