For systems of equations try using graphing, substitution, and elimination. For example
{2x+7y=3}
{x=-4y}
You should first look at if you have a variable that can be substituted (using substitution) and in this case we do! you plug in the x into 2x meaning 2(-4y)+7y=3
1) distribute -8y+7y=3
2) combine like terms in this case -8y+7y= -1y
3) solve -1y=3
y=-3
so currently our solution is (0,-3)
now we solve for x.
we plug our solved variable (y) into 7y
7(-3) and our equation looks like this
2x+7(-3)=3
1) distribute 7(-3)=-21
2) rewrite then solve 2x+(-21)=3
3) isolate variable -21+21 & 3+21
4) 2x=24
5) solve 2/24 = 12
Meaning our solution is (12,-3)
This is how to solve by substitution.
Answer:
C. m<1 + m<5 = 180 (reason: they are consecutive angles, and should be congruent)
Answer:
-4x-18
Step-by-step explanation:
pickle
Answer:
16. B
17. B
18. B
19. B
20. B
I am not sure if they are all correct but I hope I helped you a tiny bit
I Think The answer is a I hope it helps Message Me if I’m wrong and I’ll change My answer and fix it for you
