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Ghella [55]
2 years ago
13

Berta worked to solve a system of equations. 4x + y = –5 x – y = –5 Step 1: ??? Step 2: x = –2 Step 3: 4(–2) + y = –5 Step 4: –8

+ y = –5 Step 5: y = 3 Berta determined that the solution is (–2, 3). Which could have been the equation Berta found in step 1?

Mathematics
2 answers:
PolarNik [594]2 years ago
8 0
4x + y = -5
 x -  y  = -5     Adding;_
5x = -10
x = -2

required equation is 5x = -10
Lemur [1.5K]2 years ago
7 0
5x= -10
I hope I could help.

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