Question

find Y if 105 = 2 Y + 5​

Answer 1

Answer: 50

Step-by-step explanation:

2 Y + 5 = 105

2 Y = 105 - 5 = 100

Y = 100/2

Y = 50

Answer 2

Answer:

x = 6 and y = 3

Step-by-step explanation:

2y - x = 0

2y = x

Therefore x = 2y

10x + 15y = 105................(1)

Substitute x value in (1)

10x + 15y = 105

=> 10(2y) + 15y = 105

=> 20y + 15y = 105

=> 35y = 105

=> y = 105/35

=> y = 3

Sub y = 3 in x

x = 2y

=> x = 2(3)

=> x = 6

Therefore x = 6 and y = 3