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Plzzzzz help solve the following by using either the graphing method or substitution.

Plzzzzz help solve the following by using either the graphing method or substitution-example-1
User Santosh Ram Kunjir
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2 Answers

21 votes
21 votes

6x - 2y = 2 -----*

9x - 3y = 1 -----**

Take * eqn

6x - 2y = 2

y = 6x - 2

2

y = 3x - 1 ------***

Take eqn *** substitute in eqn **

9x - 3(3x - 1) = 1

9x - 9x + 3 = 1

0x = -2

This equation has no solution since all values cancel each other. That is to substitute,or eliminate will result in 0 value of x or y and the graph won't intersect.

User Expandable
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2.5k points
18 votes
18 votes

Answer:

look at the graphs in desmos. They are parallel. No solution because they do not intersect. Look at the result of the substitution method

Plzzzzz help solve the following by using either the graphing method or substitution-example-1
Plzzzzz help solve the following by using either the graphing method or substitution-example-2
User Martin Dreher
by
2.6k points