Answer this correctly.

23(22+78)×34÷21=?

23(22+78)(34)/21 =

78200/21

(Decimal: 3723.809524)

78200 / 21 = 3723 17/21 = 3723.80952381

Step-by-step explanation:

23(22+78)×34÷21

Add 22 and 78 to get 100.

23 x 100 x 34 / 21

Multiply 23 and 100 to get 2300.

2300 x 34 / 21

Multiply 2300 and 34 to get 78200.

78200 / 21

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.