Question

find the value of d in each case i)3+2d=11,ii)15+14d=1,iii)101-5÷d=16,iv)7+2d=5?​

Answer 1

Step-by-step explanation:

i) 3 +2d = 11

= 2d = 11-3 = 8

= d = 8/2 = 4

ii) 15 + 14d = 1

= 14d = 1- 15 = -16

: = d = - 16/14 = -8/7

iv) 7 + 2d = 5

2d = 5-7 = -2

d = -2/2 = -1