Question

5pens and 6pencil together cost 9.00and 3.00pens and 2pencil cost 5.00find the cost of 1pencil

Answer 1

Hey

Here is your answer,

Let the number of one be x and pencil be y.

5x + 6y = 9_______ eq.1
3x + 2y = 5_______eq.2

Multiplying equation 2 by 3,
9x + 6y =15

Solving both the equations by elimination method,
5x + 6y = 9
9x + 6y =15
________
-4x. = -6
X=6/4
X=3/2

5x+6y=9
5x3/2 + 6y=9
15/2 + 6y =9
6y = 9-15/2
6y = 18-15/2
6y=3/2
Y=1/2

Hope it helps you!