Answer:
4( p+r) = q
Step-by-step explanation:
p = q/4 - r
Add r to each side
p + r = q/4 -r+r
p+r = q/4
Multiply each side by 4
4( p+r) = q/4*4
4( p+r) = q
You use pathogorian therom, the triangle thing, regardless your answer is 20.60
A + b = 45
a - b = 21
a = 21 + b
Use substitution
21 + b + b = 45
2b = 24
b = 12
45 - 12 = 33
The numbers are 33 and 12
X1=-6,x2=1 that the answer
