Answer:
2
Step-by-step explanation:
just look at the image.
first in this you need to get rid of the 6 by the x, since its 6 times x you need to divide it by 6 to remain with x, you must do this on both sides to make it fair. you will remain with x < 4. 2 would then be the only answer to make it true.
x+y=z
4+9=13
x=4
2(4)+1=y=9
the first one
y = 3x/3
y = x
(a)9×3=37' 97 and 8 are factors of 37
