brie7396
08.12.2020 •
Mathematics
3x + 2y = 8
2x + 5y = -2
Solve the simultaneous equations.
x=
y=
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Ответ:
(4,-2)
Step-by-step explanation:
3x + 2y = 8
2x + 5y = -2
so: x= 8÷3 - 2÷3 y
and 2x + 5y= -2
2( 8÷3 -2÷3y) + 5y = -2
y= -2
x= 8÷3 - 2÷3 x (-2)=
x= 4
Ответ:
Here look at this graph this is your answer.