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PilotLPTM [1.2K]

2 years ago

8

Solve each pair of simulation equation.Giving both solutions. Multiply both equations by suitable numbers before adding/subtract

ing to elimination..
A) 6x-7y=9
3x+2y=54

B) 4x -5y =12
2x -3y =8

C)4x -2y=28
3x +3y=12

D)2x +5y =14
13x-11y=-83

1 answer:

pashok25 [27]2 years ago

6 0

Answer:

Step-by-step explanation:

I haven't got time to do all these by I'll give you the method in each case.

You have to make the x or y term equal (or 1 term + and other -) in both equations before adding or subtracting.

A . Multiply equation 2 by 2 and subtract (to eliminate x)

- don't forget to multiply EACH TERM by 2.

B. Multiply equation 2 by -2 and add.

C. Multiply equation 1 by 3 and equation 2 by 2 ( this will give -6y and +6y in the resulting equations ) so you then add to eliminate y.

D. Multiply equation 1 by 13 and equation and equation 2 by 2 to eliminate x then add.

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<h3>Methods used to find the slope and length of a line</h3>

The given coordinates of the vertices are;

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