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Alenkinab [10]
3 years ago
6

2x−15y=−10 −4x+5y=−30 Solve the following system for y:

Mathematics
1 answer:
emmainna [20.7K]3 years ago
8 0

Answer:

10

Step-by-step explanation:

multiply the first equation by 2 in order to be able to cancel out the -4z and the 2x

4x-30y=-20

-4x+5y=-30

50y+5y = -20+(-30)

55y=-50

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Angela tried to solve an equation step by step. \begin{aligned} \dfrac34+m&amp;=\dfrac54\\\\ \dfrac34+m-\dfrac34&amp;=\dfrac54+\
Liono4ka [1.6K]

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Correct solution:

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7 0
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