Multiply the first equation by -1
-3x-y=-4
2x+y=5
Add them up
-x=1
So x=-1
And y=7
So the first option is correct
Answer:4.36?
Step-by-step explanation:
distance or area?
A=lw
48=11L
4.36=l
So h is 3x
b is x
3x plus x equal 972
4x = 972
243 is base
243 times 3 is 729
2nd one, take area of whole 12 x 4=48, if area is equally divided, divide area by 2 or multiply by 1/2
