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Can you tell me how to solve this problem using substitution step by step?

y = -2x - 9 and 6x - 5y = - 19

User Galgo
by
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1 Answer

3 votes

Answer:

x = -4

Explanation:

The first equation tells us what y is equal to. We then substitute wherever there is a y with what y equals.

y = -2x - 9

6x - 5y = -19

6x - 5(-2x-9) = -19

6x + 10x + 45 = -19

16x + 45 = -19

16x = -64

x = -4

User Kali Charan Rajput
by
9.4k points

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