6a + 5w - 2a + w
Step 1:
Simplify A’s
6a - 2a = 4a
Step 2:
Simplify Ws
5w + w = 6w
Step 3:
Put together
4a + 6w
How I got my answer before was substitution!
Answer:
(-1,-1)
Step-by-step explanation:
finding y
-6x + 5y = 1
+ (6x + 4y = -10)
---------------------------
9y = -9
y = -1
finding x
-6x + 5(-1) = 1
-6x - 5 = 1
+ 5 = +5
-6x = 6
x= -1
The answer is B, 7.6-(-1.7)=9.3
If those question marks are supposed to be a radical, then 12 and 13. The square root of 147= 12.12, which puts it between 12 and 13.