evelynnavarrete12 evelynnavarrete12

26-02-2020
Mathematics

contestada

How to solve y=2x+6 and 2x+y=18 in elimination method?

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tolaosunrinde tolaosunrinde

26-02-2020

Answer: x=3; y=10

Step-by-step explanation:

y= 2x+6 ......eqn 1

2x+y=18.........eqn 2

Substitute y into eqn 2

2x + (2x + 6) = 18

2x + 2x +6= 18

4x+6=18

x=18-6/4

×=3

Substitute x=3 in eqn 1 to get the value of y

y= 2(2)+6

=4+6

y=10

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