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Mathematics, 30.08.2019 13:50 valdiviaricky1355

Astudent is trying to solve the system of two equations given below:
equation p: y + z = 6
equation q: 5y + 9z = 1
which of the following is a possible step used in eliminating the y-term?
(y + z = 6) ⋅ 9
(y + z = 6) ⋅ −5
(5y + 9z = 1) ⋅ 9
(5y + 9z = 1) ⋅ 5

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