Answer:
salini -= 5 years
mother = 40years
Step-by-step explanation:


then you equate the values of x
Answer:
The answer is 20 because if you're going from a negative number to a positive you are adding 20 not subtracting it also 10 + 10 is 20 :P
Step-by-step explanation: Hope this helps!
Answer:
y = 6/7
Step-by-step explanation:
The equation given is:
-3 = 7(y - 9/7)
To solve this, we will expand the bracket and afterwards, collect like terms:
-3 = (7*y) - (9/7 * 7)
-3 = 7y - 9
Collecting numeric terms to the left hand side:
-3 + 9 = 7y
=> 6 = 7y
=> y = 6/7
That is the solution.