Math, asked by shivthrock7455, 1 year ago

2x+8y=21 and 6x-4y=14 using substitution method

Answers

Answered by donnahu

0

Answer:

Step-by-step explanation:

2x + 8y = 21

x + 4y = 21/2

x = 10.5 - 4y

6x - 4y = 14

6(10.5 - 4y) - 4y = 14

63 - 24y - 4y = 14

63 - 28y = 14

- 28y = - 49

28y = 49

y = 1.75

donnahu: Therefore, x = 10.5 - 4* 1.75 = 10.5 - 7 = 3.5

Answered by brunoconti

0

Answer:

Step-by-step explanation:

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