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3 years ago

Substitution method please help :3

Mathematics

2 answers:

lozanna [386]3 years ago

8 0

Answer:

3x = 14

Step-by-step explanation:

Add the two equations.

5x + (-2x) = 3x

(-y) + y = 0

6 + 8 = 14

3x = 14.

Dmitry [639]3 years ago

4 0

Step-by-step explanation:

5x - y = 6 and -2x + y = 8

1/ 5x - y = 6

=> y = 5x - 6

2/ -2x + y = 8

Substitute 1/ into 2/ we will have:

-2x + (5x - 6) = 8

=> -2x + 5x - 6 = 8

=> 3x = 14

=> x = $\frac{14}{3}$ <=> y = $\frac{52}{3}$

- However, the question asked for the final equation when adding 5x - y = 6 and -2x + y = 8 => The correct answer will be: 3x = 14

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3 years ago

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goldenfox [79]

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