Question

Solving simultaneous equation
a+b=7
a-b=3​

Answer 1

Answer: a=5 b=2

Explanation:

They both satisfy the equation as 5+2=7 and 5-2=3

Hope this helps!

Answer 2

• Value of a is 5
• Value of b is 2

Explaination :

Here we have been given with two equations and we have to calculate the value of a and b by solving them simultaneously.

• a + b = 7 (Equation No 1)
• a - b = 3 (Equation No 2)

★ From Equation No 2 :

>> a - b = 3

>> a = 3 + b

★ In Equation No 1 :

Substituting here the value of a which we got above as (3 + b).

>> a + b = 7

>> 3 + b + b = 7

>> 3 + 2b = 7

>> 2b = 7 - 3

>> 2b = 4

>> b = 4 / 2

>> b = 2

★ Finding out value of a :

>> a = 3 + b

>> a = 3 + 2

>> a = 5
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