Answer:
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Step-by-step explanation:
#CarryOnLearning
1. -3x+y=6 x=2
substitute 2 in -3x
-3(2)+Y=6
-6+y=6
add 6 in both sides
-6+6+y=6+6
y=12
2. 5x+2y=9 x=-1
Substitute -1 in 5x
5(-1)+2y=9
-5+2y=9
add 5 to both sides
-5+5+2y=9
2y=9
divide both side by 2
2y/2=9/2
y=9/2 or y=4.5
3. x+y=6 y=5
Substitute 5 in y
x+5=6
subtract 5 in both side
x+5-5=6-5
x=1
4.-3x+5y=6 y=0
substitute 0 in 5y
-3x+5(0)=6
-3x=6
devide both sides by -3
-3x/-3=6/-3
x=-2
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Answers & Comments
Verified answer
Answer:
1.![\boxed{y=12} \boxed{y=12}](https://tex.z-dn.net/?f=%5Cboxed%7By%3D12%7D)
2.![\boxed{y=7} \boxed{y=7}](https://tex.z-dn.net/?f=%5Cboxed%7By%3D7%7D)
3.![\boxed{x=1} \boxed{x=1}](https://tex.z-dn.net/?f=%5Cboxed%7Bx%3D1%7D)
4.![\boxed{x=-2} \boxed{x=-2}](https://tex.z-dn.net/?f=%5Cboxed%7Bx%3D-2%7D)
Step-by-step explanation:
1.
2.
3.
4.
#CarryOnLearning
Step-by-step explanation:
1. -3x+y=6 x=2
substitute 2 in -3x
-3(2)+Y=6
-6+y=6
add 6 in both sides
-6+6+y=6+6
y=12
2. 5x+2y=9 x=-1
Substitute -1 in 5x
5(-1)+2y=9
-5+2y=9
add 5 to both sides
-5+5+2y=9
2y=9
divide both side by 2
2y/2=9/2
y=9/2 or y=4.5
3. x+y=6 y=5
Substitute 5 in y
x+5=6
subtract 5 in both side
x+5-5=6-5
x=1
4.-3x+5y=6 y=0
substitute 0 in 5y
-3x+5(0)=6
-3x=6
devide both sides by -3
-3x/-3=6/-3
x=-2