A system of equations is shown below: Equation A: 2c = d − 8 Equation B: c = 3d + 8 Which of the following steps should be performed to eliminate variable d first? Multiply equation B by 2. Multiply equation A by 2. Multiply equation B by 3. Multiply equation A by −3.

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A system of equations is shown below: Equation A: 2c = d − 8 Equation B: c = 3d + 8 Which of the following steps should be performed to eliminate variable d first? Multiply equation B by 2. Multiply equation A by 2. Multiply equation B by 3. Multiply equation A by −3.

Mathematics
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Fill in the box \[\Large \boxed{ \ ^ \ } \ d + 3d = 0d\]

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Other answers:

whats the answer
any ideas of what might go in there? something plus 3d gives 0d what is that "something" ?
b?
b plus 3d = 0d ?
no the answer
i thik its b or c
what dou think?
ok why not try this out fill in the blank \[\Large \underline{ \ \ \ \ \ } + 3 = 0\] what goes in the blank?
-3
so that applies to the 3d as well
-3d + 3d = 0d
|dw:1434769362551:dw|
so the answer is D?
|dw:1434769369508:dw|
Multiply equation A by −3
how do we turn that "d" in equation A into -3d ?
thank you.
i just need the answer
@geerky42 thats the right answer right?

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