Question

Who ever helps me ill give a medal

So please help

[6.02] For the following system, if you isolated x in the first equation to use the Substitution Method, what expression would you substitute into the second equation?

-x - 2y = -4
3x + y = 12

-2y - 4

2y - 4

2y + 4

-2y + 4

Answer 1

If you isolate x, you have -x=2y-4 --->x=-2y+4

Answer 2

thank u can help me with some more

Answer 3

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Answer 4

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Answer 5

Solve the following system of equations.
3x - 2y = 6
6x - 4y = 14

(0, 0)

(6, 14)

Infinitely Many Solutions

No Solutions

Answer 6

multiply the first equation by two and you get: 6x-4y=12
Now you have two equations one says 6x-4y=12 and the other one says: 6x-4y=14

As left part of both equations is the same (6x-4y), then right parts should be the same, however 12 is not equal to 14. That means that the system has no solutions

Answer 7

u make easy to understand

Answer 8

Which point lies in the solution set for the following system of inequalities?
y > x + 4
y > -x + 2

(1, 6)

(-2, -1)

(-3, 2)

(1, 1)

Answer 9

Any point that fulfills y-x>4 and y+x>2 will also fulfills (adding both inequalities)
2y>6--->y>3 the pair (1,6) is the solution