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anonymous
 one year ago
A system of equations is shown below:
Equation A: 4c = d − 8
Equation B: c = 5d + 8
Which of the following steps should be performed to eliminate variable d first?
Multiply equation B by 4.
Multiply equation A by −5.
Multiply equation A by 4.
Multiply equation B by 5.
anonymous
 one year ago
A system of equations is shown below: Equation A: 4c = d − 8 Equation B: c = 5d + 8 Which of the following steps should be performed to eliminate variable d first? Multiply equation B by 4. Multiply equation A by −5. Multiply equation A by 4. Multiply equation B by 5.

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Godlovesme
 one year ago
Best ResponseYou've already chosen the best response.2so if u want to eliminate d we should have two opposite but the same constant like in this case we have 5d in the second equation so we want the first one to have the same constant (5) but with different sign got it?

Godlovesme
 one year ago
Best ResponseYou've already chosen the best response.2so what do u think is the asnwer?

Godlovesme
 one year ago
Best ResponseYou've already chosen the best response.2close but remember it has to be a different sign, in the second eqn we have positive 5 so we need ....

Godlovesme
 one year ago
Best ResponseYou've already chosen the best response.2u got the asnwer right? :P
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