another question! in the third step why do you think lin wrote 7 next to the remainder of 2 rather than adding 7 and 2 to get 9?

3

Step-by-step explanation:

What do you mean another question? Well, this is out of context for me but it's because remainders in division cannot be added to the answer, or divided neatly.

Step-by-step explanation:

See Above :)

answer is because 4×10=40

and 98×4= is 392

40,392

system of linear equation

step-by-step explanation:

as given in the data

a= 20 , b= -12

let us suppose that it is a straight line equation

now we know the formula for the system of linear equation

b= ma + c )

here m is slope of a straight line which is equal to formula

m=   (ii)

and here c is a constant

now putting the value of a and b in equation (ii)

m=

m=

putting the value of a,b and m in equation (i) gives us

-12 = + c

-12=-12 + c

adding 12 to both sides

-12 +12 = -12 +12 +c

0 =c

or c=0

as the value of the constant is zero which gives us that it is a linear equation and this order pair satisfies the system of linear equations.