Lời Giải
Lời Giải
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Translate the problem into an equation:
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Ví dụ phổ biến
Twice the hiệu of a number and 6 is 8Amal wants to place all the numbers 1 to 10 in the circles in diagram with one number in each circle. She wants the sum of the numbers in any four circles that are in a straight đường thẳng to be 23 , for example the sum of numbers in four grey circles is 23 . What number must she place in the circle containing the question mark?The hiệu between five times a number and six more than four times the number15 less than a number is 45Four more than the product of a number and 9 is equal to 3