helpwithmathwork
helpwithmathwork
29-05-2018
Mathematics
contestada
solve the system of equations
Respuesta :
aosera
aosera
29-05-2018
5x+4y = 73
-4x + 4y = -8
5x + 4y -(-4x+4y) = 73 -(-8)
5x + 4y + 4x - 4y = 81
5x + 4x + 4y - 4y = 81
9x = 81
x = 81÷9
x = 9
Substitute x = 9 into any of the equations to find y.
5(9) + 4y = 73
45 + 4y = 73
4y = 73 - 45
4y = 28
y = 28÷4
y=7
Answers :
x = 9
y = 7
Answer Link
jonesprincess116
jonesprincess116
13-11-2019
Answer:
(9,7)
Step-by-step explanation:
(9,7)
Answer Link
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