Answer:
x=3 and y=4
Step-by-step explanation:
solve x-y=-1 to get x:
x−y=−1
x−y+y=−1+y(Add y to both sides)
x=y−1
Substitute y−1 for the x value in x+2y=11:
3y/3=12/3
y=4
Substitute 4 for the y value in x=y−1:
x=y−1
x=4−1
x=3
so y=4, and x=3
Step-by-step explanation:
okay so -25 • -9 = 9+10
225 = 9+10
225 = 19
19. 19
= 11.8
Answer:
-13, -17, -21.
Step-by-step explanation:
All you have to do is subtract it by 4 each term.
Add 7 on both sides to then left side cancels out and you end up with 13x=143 then you divide 13 on both sides and get x=11