Answer:
Step-by-step explanation:
Answer:
x=-2, y=4. (-2, 4).
Step-by-step explanation:
3x+2y=2
-2x+y=8
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y=8-(-2x)
y=8+2x
y=2x+8
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3x+2(2x+8)=2
3x+4x+16=2
7x+16=2
7x=2-16
7x=-14
x=-14/7
x=-2
3(-2)+2y=2
-6+2y=2
2y=2-(-6)
2y=2+6
2y=8
y=8/2
y=4
Answer:
- m - 6n + 10
Step-by-step explanation:
-(m + 6n - 10)
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v
- m - 6n + 10
Answer:
x=1
Step-by-step explanation:
6(5x - 3) + 2 = 14
Subtract 2 from each side
6(5x - 3) + 2-2 = 14-2
6(5x - 3) = 12
Divide each side by 6
6(5x - 3) /6 = 12/6
5x-3 = 2
Add 3 to each side
5x-3+3 = 2+4
5x=5
Divide each side by 5
5x/5 = 5/5
x = 1
Answer:
D
Step-by-step explanation:
Given the 2 equations
x = y + 4 → (1)
2x - 3y = - 2 → (2)
Substitute x = y + 4 into (2)
2(y + 4) - 3y = - 2 ← distribute and simplify left side
2y + 8 - 3y = - 2
- y + 8 = - 2 ( subtract 8 from both sides )
- y = - 10 ( multiply both sides by - 1 )
y = 10
Substitute y = 10 into (1) for corresponding value of x
x = 10 + 4 = 14
Solution is (14, 10 ) → D
