Question

3x-4y=15;x+y=2in substitution method​

Answer 1

Answer:

x= -2 and y = -9

Step-by-step explanation:

y= x - 2

therefore, 3x -4(x-2) = 15

3x - 4x + 8 = 15

- x = 7

so, x= -7

now y= -7-2 = -9