If you subtract 13- -19, you get 32 degrees
9x10^6
+5x10^5
+4x10^4
+0x10^3
+0x10^2
+0x10^1
+0x10^0
Answer:
Step-by-step explanation:
3a-2b=14 multiply by 3
9a - 6b = 42 (1)
4a+3b=13 multiply by 2
8a +6b = 26 (2)
sum up (1) and (2)
17a = 68
a =4
b=-1
Multiply both sides by 4 to isolate the x term.
x = 5 × 4
x = 20
