7
3/7
17 and 7
23 x 3 x 7 = 168
3*(n + 8) = 21 Divide both sides by 3: n + 8 = 21/3 = 7 Substract 8 from both sides: n = 7 - 8 = -1
I am a 3 digit number divisible by 7 but not 2 the sum of my digits is 4 what number am I
0.16
Sum of is a grouping symbol. 7*(2+5)
2x3x3x3x3x3x5x7 = 17010
4(8+2x)=5x+1132+8x=5x+118x-5×=11-323x=-213 3=-7Therefore the number is -7
In a multiplication sum, for example, 7 x 6 = 42, the number 7 is the multiplier, and the number 6 is the multiplicand.
Its digital sum is: 2+2+3 = 7