B.
-2x + 8 = y
3x - y = 22

How do I solve it

answer

x=6, y=-2

explanation

-2x + 8 = y equ 1

3x - y = 22 equ 2

u can use any of the simultaneous equation method

using elimination method

rearrange first from equ 1

-2x+8=y

-y-2x=-8

multiple through by -1

y+2x=8 equ 3

rearrange first from equ 2

3x-y=22

-y+3=22 equ 4

equate 3 and 4, adding them together

y+2x=8 equ 3

-y+3=22 equ 4

0+5x=30

5x=30

x=6equ 5

replace 6 for x in any equation

using equ 3

y+2x=8

y+2(5)=8

y+10=8

y=8-10

y=-2

nlgqer

step-by-step

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour