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2 years ago

The sum of two numbers is 72 and their difference is 40. Using elimination method

Mathematics

1 answer:

d1i1m1o1n [39]2 years ago

3 0

Answer:

here's what we know:

a + b = 72

a - b = 26

We can use the elimination method to solve this problem:

a + b = 72

a - b = 26

---------------

2a = 98

Divide both sides by 2:

a = 49

So we now have:

49 + b = 72

and:

49 - b = 26

Subtract 49 from both sides:

b = 23

and

-b = -23 (multiply both sides by -1) → b = 23

Step-by-step explanation:

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2 years ago

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Step-by-step explanation:

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