Answer:
Step-by-step explanation:
4 x pi = 12.57
Pi is approx. equal to 3.14
4 x 3 = 12
1/3x + y = -2
-1/3x -1/3x
y = -1/3x-2
(x+10)+(3x-5)+x=5x+5
5x-5=180
+5 +5
5x=185
185/5=37
37=x
