Question

-2x-y=4-----------------1st eqn
x+2y=1-----–------------2nd eqn​

Answer 1

Answer:

The values are x= -2 and y= 2

Step-by-step explanation:

Use substitution method easier or a scientific calculator

Answer 2

Answer:

x = -3, y = 2

Step-by-step explanation:

-2x - y = 4

x + 2y = 1

we have two equation on solving using substitution method:

on solving first equation

y = -2x - 4

on putting value of y in second equation:

x + 2(-2x - 4 ) = 1

x - 4x - 8 = 1

-3x = 9

x = -3

so, we have value of x

then, y = -2*-3 -4

y = 2

Hence , on solving both equation we have x = -3, y = 2