Answer:
4
Step-by-step explanation:
Well if you're wanting to use substitution, you first have to end up with one term on either side of the equation. Use the second one as it's easiest.
So: x-2y=11, so find -2y as there is a -2y in the first equation.
then that becomes -2y=11-x. then sub that into equation 1, and you get:
-x+11-x=-13, which equals to -2x+11=-13, which is -2x=-24, so therefore
x=12. then chuck the x into any of the equations to find what y equals.
hope this helps!
You will need 28 rows because if you divide 224 by 8 you would get 28 (:
2s+14=12
2s=-14+12
2s=-2
s=-2÷2
s=-1
Which one question? there is multiple in there.
