solve each system of the following?

Question

2x+3y=5
3x+4y=8




2x-5y=5
y=x+2





2xover 5 - yover 2= 7over10
xover3+y=2

Answer 1

1) 2x/5 - y/2 = 7/10
4x - 5y = 7 {*10}

2) x/3 + y = 2
x + 3y = 6 {*3}
x = 6 - 3y

4(6 - 3y) - 5y = 7
24 - 12 y - 5y = 7
-17y = - 17
y = 1

x = 6 - 3y
x = 6 - 3
x = 3

1) 2x/5 - y/2 = 7/10
6/5 - 1/2 = 7/10
12/10 - 5/10 = 7/10
7/10 = 7/10

Answer 2

Question 1
-6x - 9y = - 15
6x + 8y = 16--------ADD

- y = 1
y = - 1

3x - 4 = 8
3x = 12
x = 4

x = 4 , y = - 1

Question 2
2x - 5(x + 2) = 5
2x - 5x - 10 = 5
-3x = 15
x = - 5

y = - 5 + 2
y = - 3

x = - 5 , y = - 3

Question 3
2x/5 - y/2 = 7/10
x/3 + y = 2

4x - 5y = 7
x + 3y = 6

4x - 5y = 7
- 4x - 12y = - 24-----ADD

-17y = - 17
y = 1

x + 3 = 6
x = 3

x = 3 , y = 1