Question

Cost of a pencil is six and half times the cost of an
eraser. Express this statement as a linear equation
in two variables.​

Answer 1

Answer:

2x+x=9     [ half of 6 is 3 which means 6+3=9 ]

Step-by-step explanation:

cost of eraser = X

cost of pencil is double of eraser = 2X

linear equation in two variables is = 2X+X=9

putting the value of X:

(2x3)+3=9

6+3=9

9=9

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