Asked by Nikki
A student is trying to solve the set of two equations given below:
Equation A: x + z = 6
Equation B: 2x + 4z = 1
Which of the following is a possible step used in eliminating the z-term?
Multiply equation B by 4.
Multiply equation A by 2.***
Multiply equation A by −4.***
Multiply equation B by 2.
(either b or c)
Equation A: x + z = 6
Equation B: 2x + 4z = 1
Which of the following is a possible step used in eliminating the z-term?
Multiply equation B by 4.
Multiply equation A by 2.***
Multiply equation A by −4.***
Multiply equation B by 2.
(either b or c)
Answers
Answered by
Damon
b would be used to eliminate x
but
you are supposed to eliminate z
so
c
which would give you -4z+4z = 0
but
you are supposed to eliminate z
so
c
which would give you -4z+4z = 0
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