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rosijanka [135]
3 years ago
10

Solve the system using substitution {4y+19=× 3y-×=-13

Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
3 0
3y - ( 4y + 19 ) = - 13 ;
3y - 4y - 19 = - 13 ;
- y - 19 = - 13 ;
 -y = 19 - 13 ;
-y = 6 ;
y = - 6 ;
Then, x = 4 * ( - 6 ) + 19 ;
x = - 24 + 19 ;
x = - 5 ;
The solution of the system is x = - 5 and y = - 6 ;
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