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LINEAR EQUATIONS
nios.ac.in(iv) The digit at tens place of a two digit number is two times the digit at units place. If digits are reversed, the number becomes 18 less than the original number. What is the original number? In (i), the equation can be written as x + 4 = 11. You can verify that x = 7 satisfies the equation. Thus, x = 7 is a solution. In (ii), the equation ...