Solve using ELIMINATION (with step by step explanation) Please
3x+y=-9
y=5x+7
1 answer:
Answer:
<h2>x = -2 (verified by algebra) ✅</h2>
Step-by-step explanation:
Since we are given the value of y, we can replace it with 5x + 7.
We now have: 3x + 5x + 7 = -9
We can now simplify by adding 3x and 5x to get 8x.
8x + 7 = -9
We can subtract 7
8x = -16
And now, we divide by 8
x = -2
We can check to make sure we are correct
3(-2) + 5 (-2) + 7 = -9
-6 + -10 + 7 = -9
-9 = -9 ✅
You might be interested in
Answer:
(0,2)
Step-by-step explanation:
the point where Oy intercepts the graph has x=0 and y= f(0)
so this is (0,2)
Answer: hehe, I don’t understand spAnIsh
Step-by-step explanation:
Answer:
31
Step-by-step explanation:
m<ACB is half of the angle AOB so u divide 62/2 and the answer is31
Please provide us with more info, then we'll gladly answer