-17
It is: 35-20 = 15
26
24 this is how it breaks down -15 + x = 9 => x= 9 + 15 => x= 24
To find the least number that must be added to 308 to make it divisible by 19, we first divide 308 by 19. The division gives a quotient of 16 with a remainder of 4, since ( 19 \times 16 = 304 ). To make 308 divisible by 19, we need to add ( 19 - 4 = 15 ). Thus, the least number that must be added is 15.
8
it is the number such that 15 added to negative 15=0
Any rational number does.
9400÷65 gives144 quotient,40 remainder. 65×145 =9425 25 is the least
Let the number be represented as ( x ). The expression for the sum of 10 times the number and 15 added to 11 times the same number can be written as ( 10x + (11x + 15) ). Simplifying this gives ( 21x + 15 ). Therefore, the sum is ( 21x + 15 ).
15
Dissolve 15 g salt in 100 mL water.
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