the sum is −7 and the difference is 14
Answers
Answered by
1
So.... What I have to find?
Apoorvtiwari:
hey u looks cute tho
Answered by
0
so Whats question❓ asking
x-y=-7
x+y=14
Subtract x from both sides
y=14-x
Substitute 14-x for y
x-(14-x)=-7
Distribute the -1
x+(-14+x)=-7
Sum up
2x-14=-7
Add 14 to both sides
2x=7
divide both sides by 2
x=7/2
Substitute 7/2 for x
7/2+y=14
Subtract 7/2 from both sides
y=14–7/2
Find LCM
y=28/2–7/2
Do math
y=21/2
so the two numbers are 7/2 and 21/2
x+y=14
Subtract x from both sides
y=14-x
Substitute 14-x for y
x-(14-x)=-7
Distribute the -1
x+(-14+x)=-7
Sum up
2x-14=-7
Add 14 to both sides
2x=7
divide both sides by 2
x=7/2
Substitute 7/2 for x
7/2+y=14
Subtract 7/2 from both sides
y=14–7/2
Find LCM
y=28/2–7/2
Do math
y=21/2
so the two numbers are 7/2 and 21/2
Similar questions