Question

find the value of expression:2a-2b-10+4a+b, if a=5 and b=1.​

Answer 1

Answer:

$2a - 2b - 10 + 4a + b \\ \\ where \: a \: = 5 \: and \: b = 1$

$2 \times 5 - 2 \times 1 - 10 + 4 \times 5 + 1$

$10 - 2 - 10 + 20 + 1$

$19$

Answer 2

Answer:

put the values of a and b in the above equation

2(5)-2(1)-10+4(5)+1

10-2-10+20+1

19