Answer: C
Step-by-step explanation:
-5n=4m+8
4m+8=-5n
4m=-5n-8
m=-5n/4 - 8/4
m=-5n/4 - 2
Answer: the value of m for each value of n is:
m=-5n/4 - 2
if n=-1
m=-5(-1)/4 -2=5/4 - 2=(5-8)/4=-3/4
if n=0
m=-5(0)/4 -2=0-2=-2
fi n=1
m=-5(1)/4 - 2=-5/4 -2=(-5-8)/4=-13/4
Answer: if n=-1, then m=-3/4; if n=0, then m=-2, if n=1, then m=-13/4.
1) 3r = -30
Divide both sides b 3.
r = -10
2) 80 = -10v
Divide both sides by -10.
v = -8
3) 5n = -20
Divide both sides by 5.
n = -4
4) 7 = 7p
Divide both sides by 7.
p = 1
5) -7n = -49
Divide both sides by -7.
n = 7
~Hope I helped!~
* Also, please make sure to ask these questions individually next time, thanks! :)*
Answer:
B
Step-by-step explanation:
(Standard form is automatically in integers)
Multiply by 3 to take out the fraction
3y=2x+21
-2x -2x
-2x+3y=21
Standard form means Ax+By=C with positive A (usually--some people allow A to be negative).
Multiply by (-1)
2x-3y=-21
(Technically, that's the more correct answer, but since you don't have that choices, it's just the previous one.)
