10936.1 yards = 10 kilometers 1 kilometer = 1093.1 yards
Answer:
x=-3
y=4
Step-by-step explanation:
2x-y=-10
y=4
Substitute y = 4 into the first equation
2x-(4) = -10
2x -4 = -10
Add 4 to each side
2x-4+4 = -10+4
2x = -6
Divide each side by 2
2x/2 = -6/2
x =-3
For the first one your answer would be y=7x because there is no number to subtract from it so it would automatically be 7x. And the second one will be 2y
The most usfull tool would be a compas
Answer:
the 3rd one
Step-by-step explanation: