Answer:
A) x + y = - .7
B) -3x + y = 11.7
We'll multiply A) by 3
A) 3x + 3y = -2.1 the add it to B)
4 Y = 9.6
Y = 9.6 / 4 = 2.4
-3x + (9.6 / 4) = 11.7
-3x = 9.3
x = -3.1
Step-by-step explanation:
