Question

Solve the following simultaneous equation graphically 3x + 4y = -5; x-y=-4​

Answer 1

Step-by-step explanation:

3x + 4y = -5 , X -Y = -4

x- y = -4

x = -4 +y

3x + 4y = -5

3(-4+y) + 4y = -5

-12 +3y + 4y = -5

7y = -5 + 12

y = 7/7= 1

x = -4+y

x = -4 + 1 = -3

x = - 3

y = 1 Answer