-4x+y= -9 can be turned into
y= -9 + 4x
5x+2y=3 (plug y in)
5x+2(-9+4x)=3
5x-18+8x=3
5x+8x=3+18
13x=21
divide 13 on both sides
x=1.6
Answer:
1
Step-by-step explanation:
Answer:
0.47140452
Step-by-step explanation:
Answer:
p : 3.4
Step-by-step explanation:
2.1-2*p=-4.7
2.1+4.7=2*p
2*p=6.8
p=6.8/2= 3.4