Add 2a+3b+c+d, −a+b−c−d and 3a−4b−2c−2d. Find the value of the final expression if a=2, b=3, c=4, d=5. [3 MARKS]
There are 750 students in a school. If there are "x" boys and 110 more girls then, the linear equation is :
a) x + x +110= 750
b) 2x + 110 = 750
c) x + x = 750 + 110
d) 110x = 750