Question

42. If a = m, b= m - 4, c= m +2, then 4a + 3b-7c = ?
(1) 26
(2) 14
(3) -26
(4)-14
43. There are two wires of length 44 cm each. One wire is turned to give the​

Answer 1

so we have

=4a+3b-7c

=4×m+3(m-4)-7(m+2)----{putting the value of a,b and c as given in question}

=4m+3m-12-7m-14

=7m-7m-12-14

=. -26

your answer is -26. :)