ALGEBRA F2

 Calculate the value of 2x + k + 80 + y , when x = 8, k = 20 and y =−13 .

 

Solution

 

=2x + k + 80 + y

 

=2(8) + 20 + 80 + (-13)

 

=2(8) + 20 + 80 + (-13)

 

=16 + 20 + 80 – 13

 

= 36 – 13

 

= 23 answer

 

TRY THIS.............................. 

 

 

Calculate the value of 11x + k - 70 + y, when x = 12, k = 13 and y =− 20 .