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