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A student is trying to solve the set of two equations given below: Equation A: x + z = 6 Equation B: 5x + 7z = 1 Which of these is a possible step used in eliminating the z-term?
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A student is trying to solve the set of two equations given below:

Equation A: x + z = 6
Equation B: 5x + 7z = 1

Which of these is a possible step used in eliminating the z-term?

User Darren Griffith
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1 Answer

7 votes
To eliminate z multiply equation A by 7 and subtract both equations or divide equation B by 7 and subtract. (in this case, multiplying Equation A by 7 would be easier)
User Stslavik
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