Question

cost of 2 tishirts, 6 jeans :12000 and
cost of 1 tishirt, 7 jeans :12000
what is the cost of only 1 tishirt??​

Answer 1

Answer:

Let the cost of one t-shirt be X

Let the cost of one jeans be y

= 2x + 6y = 12000 - (1)

= x + 7y = 12000 - (2)

multiply equation (2) by 2,

2x + 6y = 12000

2x + 14y= 24000

by subtracting,

-8y = -12000

Y= 1500

SUBSTITUTE THE VALUE OF Y IN EQ 1

2x + 6(1500) = 12000

X = 1500

Hope it help you.