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Solve the system of equations using substitution. 2x+y=11 x-y=7

Solve the system of equations using substitution. 2x+y=11 x-y=7
asked 234k views
4 votes
Solve the system of equations using substitution.

2x+y=11
x-y=7

asked
User Scoates
by
7.9k points

1 Answer

6 votes
x = y + 7

2x + y = 11

2(y + 7) + y = 11

2y + 14 + y = 11

3y + 14 = 11

3y = -3

y = -1

x + 1 = 7

x = 6

(6, -1)
answered
User Richcollins
by
8.4k points
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