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5x – 2y = 1 x + 3y = -7 How to solve by substitution
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3 votes
5x – 2y = 1
x + 3y = -7
How to solve by substitution

User Alexander Wallin
by
6.3k points

1 Answer

5 votes

Explanation:

substitute x for 3 and y for 7

5×3-2y=1

15-2×7=1

15-14=1

substitute y for -5 and x for 8

8+3×-5=-7

8+-15=-7

User Bartlomiej
by
6.0k points
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