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Y=6x+7 3x - 8y = 4 Substitute?

Y=6x+7 3x - 8y = 4 Substitute?
asked 33.5k views
5 votes
Y=6x+7
3x - 8y = 4
Substitute?

asked
User Shane Lu
by
7.6k points

1 Answer

1 vote

Answer:

Y=1, X= -(4/3)

Explanation:

Y=6X+7

3X-8Y=4

Substitute Y=6X+7

3X-8Y=4

3X-8(6X+7)=4

3X-48X-56=4

-45X-60=0, therefore 45X=-60=X=-4/3

Sub. X values in Equation

Y=6X+7

=6(-4/3)+7, therefore Y=-1

answered
User Yo Chauhan
by
7.9k points
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