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Rina8888 [55]
4 years ago
10

Equation A: 3c = d − 8 Equation B: c = 4d + 8 Which of the following steps should be performed to eliminate variable d first?

Mathematics
1 answer:
netineya [11]4 years ago
7 0
3c = d - 8 ....multiply by -4
c = 4d + 8
--------------
-12c = -4d + 32 (result of multiplying by -4)
c = 4d + 8
-------------add
-11c = 40.....as u can see, the d's have been eliminated

answer : multiply equation A  by -4
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