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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…

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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1 vote
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
by
8.1k points

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
by
8.6k points
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User TuyenNTA
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Which of the following is a possible step used in eliminating the y-term? Y+z=6 8y+7z=1
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