Y= 2x 2x + y=8 Does anyone know the answer

asked Apr 15, 2023 64.6k views

10 votes

Y= 2x
2x + y=8
Does anyone know the answer

by Kinze

5.8k points

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9 votes

Answer:

x is 2, y is 4

Explanation:

${ \tt{y = 2x - - - (a)}} \\ { \tt{2x + y = 8 - - - (b)}}$

» Substitute for y in equation (b) with that in equation (a)

${ \tt{2x + 2x = 8}} \\ { \tt{4x = 8}} \\ { \tt{x = 2}}$

» Find y

${ \tt{y = 2 * 2}} \\ { \tt{y = 4}}$

George Kagan answered Apr 19, 2023

5.7k points

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