Answer:
x = 0.36 y = -3.1
Step-by-step explanation:
(7x + 5y = -13)2
(-2x - 7y = 21)7
14x + 10y = -26
-14x - 49y = 147 Add both equations together
-39y = 121 Divide both sides by -39
y = -3.1
Plug -3.1 in for y into one equation
7x + 5(-3.1) = -13
7x -15.5 = -13
+15.5 +15.5 Add 15.5 to both sides
7x = 2.5 Divide both sides by 7
x = 0.36
