T = Tina
W = Wayne
C = Calvin
T - 40 = 447
447 + 345 = 792
792/36 = 22 (answer)
check me on arithmetic or not because i'm pretty sure i'm right
Please comment this in english.
As humans we live with math on a daily bases. If that is cooking, traveling (Ex. calculating the miles and how much gas it will use), for heath (calculating calories), etc.
Answer:
x=1
y=-4
Step-by-step explanation:
4x+y=0 -> y= -4x
2(-4x)+x=-7
-8x+ x=-7
-7x=-7
x=-7/-7=1
y=-4 . 1 = -4
