The sum of two numbers is 60 and their difference is 30 so, the equation formed is __________
Answers
Answer:
x + y = 60
x - y = 30
The type of equation formed is a simultaneous equation
Step-by-step explanation:
to find the values of x and y solve the two equations simultaneously.
step 1. subtract equation 1 from equation 2 so as to eliminate x
you will remain with 2y = 30
divide both sides by 2 to get the value of y i.e y = 15
step 2. use the value of y to get x by substituting in one of the equations
i chose equation 1 i.e x + 15 = 60
collect like terms and you will get x = 60-15
therefore x= 45
to verify that the values are correct and that the equation created is correct substitute the values of x and y in both equations.
i.e
45 + 15 = 60 AND 45 - 15 = 30
therefore the values of x and y are correct and the equation formed is also correct.
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