Answer:
Then, a=-1 and b=-1
Step-by-step explanation:
We need to solve the following system of equations using the adition method:
2a+3b=-1 (i)
3a+5b=-2 (ii)
First, we multiply the equation (i) by -3 and the equation (ii) by 2, so we get:
-6a-9b=3
6a+10b=-4
Adding the two equations we have:
-6a-9b=3
6a+10b=-4
--------------------------
0 + b = -1
Then b=-1. Now, let's substitute the value of b into equation (i):
2a+3b=-1
2a + 3(-1) = -1
2a -3 = -1
2a = 2
a = 1
Then, a=-1 and b=-1
The dashed boundary line means that the solutions are not on the boundary line. It is used for < and >
Answer:
........................
Step-by-step explanation:
Answer:
<em>12</em>
Step-by-step explanation:
180/15 = 60/5 = 12
The answer is the last bubble 52 as the parentheses are negative so it makes what’s in the parentheses negative and -13/-1/4w = w=52
