Question

122. A number N is squared to give a value of S. The
minimum value of N + S would happen when N is
(a) -0.3
(b) 0.5
(c) -0.7
(d) None of these​

Answer 1

Answer:

2x+3=x+15

Step 1: Subtract x from both sides.

2x+3−x=x+15−x

x+3=15

Step 2: Subtract 3 from both sides.

x+3−3=15−3

x=12

Answer:

x=12