exam Maths Puzzle Numerical Ability

square root of 3x-2-(minus) square root of x-2=2

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exam Other Question

A lease calls for a rental of $1000 the first month and an increase of 10% each month over the previous month's rate. How much will it cost to lease this property for six months? What are the two answers in both the substitution method and linear combinations?

1] 2x-7y=10
5x-6y=2

2] x+y=3x-1
x-y=1-x