Answer:
y = 30x + 20
Step-by-step explanation:
y = mx + b
find b
b=20
find m
m=30
 
        
             
        
        
        
Answer:
the Expression is :
(3) × (1 + 6d + 7y)
Step-by-step explanation:
here's the solution : - 
=》

=》

now, since 3 is common in all terms let's take it out.
=》

=》so, ,we got the above expression as product of 3 and ( 1 + 6d + 7y ) as factors.
 
        
                    
             
        
        
        
Answer: x=-1 y=1
Step-by-step explanation:
solve y in 3+2x-y=0 
y=3+2x 
sub y=3+2x into -3 -7y=10x 
-14x- 24= 10x 
solve x in -14x-24=10x 
x= -1 
sub x= -1 into y =3+2x 
y=1 
so therefore x= -1 and y=1