Question

Which ordered pair in the form (a, b) is a solution of this equation?

4a – 5b = 24




A.(–5, –2)


B.(6, 0)


C.(0, 6)


D.(–2, –5)


@iGreen

Answer 1

Hi! This is a plug and chug equation meaning you can just plug in the answers to the equation. Slow but reliable. SO for A it would be 4(-5)-5(-2) can you solve this and tell me your answer?

Answer 2

4a – 5b = 24

Plug in (-5, -2) into the equation:

4(-5) - 5(-2) = 24

Multiply:

-20 + 10 = 24

Add:

-10 = 24

(-5, -2) is not a solution to the equation.

Plug in (6, 0):

4a - 5b = 24

4(6) - 5(0) = 24

Multiply:

24 - 0 = 24

Can you subtract 24 - 0? @NunChuckBoy3101

Answer 3

Never mind. Igreen knows how to solve this far better then me :D

Answer 4

24-0=24

Answer 5

ok thank you for trying @ohlookidontunderstandanotherthing

Answer 6

Right, so that leaves you with 24 = 24, which means (6, 0) is a solution to 4a - 5b = 24.

Answer 7

so b

Answer 8

@iGreen thank you if i have any more questions can i tag you?

Answer 9

Yes, you can.

Answer 10

And you're correct, B is the right answer.

Answer 11

thank you