a: 5*(-3)+2a-4=0 -19=-2a a=9i1/2
b: 5*2b+1-4=0
10b=3
b=3/10
c: 5*(c-2)+2*9(-3c)-4=0
5c-10-6c-4=0
-1c=14
c=-14
2y= 15+4
2y= 19
y= 9,5
A(-3; 9,5)
5x= -2y+4
5x= -1+4
5x= 3
x= 3/5
3/5:2= 3/10
B(3/10; 1/2)
-c= 14
c= -14
C(-16, 42)
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a: 5*(-3)+2a-4=0
-19=-2a
a=9i1/2
b: 5*2b+1-4=0
10b=3
b=3/10
c: 5*(c-2)+2*9(-3c)-4=0
5c-10-6c-4=0
-1c=14
c=-14
2y= 15+4
2y= 19
y= 9,5
A(-3; 9,5)
5x= -2y+4
5x= -1+4
5x= 3
x= 3/5
3/5:2= 3/10
B(3/10; 1/2)
5c-10-6c-4=0
-c= 14
c= -14
C(-16, 42)