Definition: This is the answer to a problem or an equation.

Example: For 3x+6=27, this is x=

7

Step-by-step explanation:

3x+6 = 27

Carry over the 6 to the 27 and make x the subject.

3x= 27-6

3x= 21

x= 21/3

x= 7

To check if the answer was correct, replace the x with the value it is in brackets. Remember brackets mean to multiply. The value of x is 7.

3(7)+6= 27

21+6= 27

Therefore the answer is correct and x= 7

50 min

step-by-step explanation:

they will be decreasing both their times in half

60 / 2 = 30

40/2 = 20

30 + 20 = 50