Question

Solve the linear equation
For X and
y
3x - y - 7=0.
2x + 5y+1=0
​

Answer 1

Answer:

x=2 and y =-1

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Step-by-step explanation:

3x-y=7 multiply by 2

2x +5y=-1multiply by 3

--------------

6x-2y=14

6x+15y=-3

-(-)--(-)----(+)

- 17y=17

y=-1

substitute y=-1 in eqn

3x-(-1)=7

3x+1=7

3x=7-1

3x=6

x= 3/6

x=2