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14
6x - 14 + 2x = 10 8x - 14 = 10 8x = 24 x = 3 Check it. 18 - 14 + 6 = 10 it checks.
-104
14
120
14
6x - 14 + 2x = 10 8x - 14 = 10 8x = 24 x = 3 Check it. 18 - 14 + 6 = 10 it checks.
-104
14
The next number is the sequence is 10. To find the second number, 1 was subtracted from the first number To find the third number, 2 was subtracted from the second number To find the fourth number, 3 was subtracted from the third number Therefore to find the fifth number, 4 must be subtracted from the fourth number. 14 - 4 = 10
14
-140
Just work the problem backwards. The answer is 248. Something was divided by 12 in order to get it. If we MULTIPLY 248 by 12, we will find that number. We get 2,976. Now, we need to ADD 14, since 14 had originally been subtracted from the number we're looking for. Adding 14 we get 2,990.
120
18
14
3x -5(1/x) =14 *multiply everything by x 3x2-5= 14x *move 14x over 3x2-14x-5 *Factor (3x+1)(x-5) *Solve by setting brackets to 0 3x+1 = 0 x=-1/3 x-5=0 x=5 CHECK BY PLUGGING INTO EQUATION 3(-1/3)- 5(1/-1/3) = 14 -1+ 15 = 14 3(5)-5(1/5)=14 15-1 =14 Therefore the number can be -1/3 or 5