Answer:
y = -7, x = 2
Step-by-step explanation:
x+3y=-23 (eq 1)
-x+4y=-26 (eq 2)
eq1 + eq 2
7y = -49
y = -7
Sub y = -7 into eq 1
x+3(-7) =-23
x -21 = -23
x = 2
Answer:8 candy bars because 21-5=16/2=8 candy bars.
Factor by grouping
(2x+3) (x-5)
= 2+10²× 1
= 2+(10*10)× 1
= 2+100×1
= 2+100
=102