Santosh spends rupees(7x-4)for a shirt and rupees (2x+8) for a pair of trousers.If he gives the shopkeeper rupees 1000 note,how much will he get back?
Answers
Answer:
Rs 996 - 9x
Step-by-step explanation:
Cost of the shirt = 7x - 4
Cost of the trousers = 2x + 8
Total cost = 7x - 4 + 2x + 8
= 9x + 4
Money given = Rs 1000
Therefore, money to be returned = 1000 - (9x + 4)
= 1000 - 9x - 4
= Rs 996 - 9x
Answer:
Concept:
The linear equation in one variable is an equation that is expressed in the form of ax+b = 0, where a and b are two integers, and x is a variable and has only one solution
Step-by-step explanation:
Given:
Santosh spends rupees(7x-4)for a shirt
rupees (2x+8) for a pair of trousers
He gives the shopkeeper = 1000 rupees
Find:
How much does he get back from the shopkeeper
Solution:
Let us add the amount he spends on both the trousers and a shirt
= (7x - 4) + (2x + 8)
= 9 x + 4
The amount he gets back = The amount given to shopkeeper - the amount spent
= 1000 - (9x + 4)
= 1000 - 9x - 4
= 996 - 9x
9x = 996
x = 996 / 9
x = 110.6
So the amount he gets back is Rs.110.6/-
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