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Solution
y = 2x – 7
4 + y = 12

User David Lin
by
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2 Answers

1 vote
15/2. Hope this helps!!
User Iii
by
8.3k points
3 votes

Answer:

x = 15/2 (15 over 2)

y = 8

Explanation:

there 3 different way to do this (substitution, Elimination and Matrix)

ill be showing substitution ( you use the answer of one of the variables and substitute it for the other questions variable)

4 + y = 12

y = 12 -4

y = 8

y = -2x - 7

8 = 2x - 7

8 + 7 = 2x

15 = 2x

x = 15/2

hope this helped and made a little sense!

User Bastian Voigt
by
9.0k points

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