Question

If x=1-a and y=2+ a is a solution bf 3x-2y+2021=0 then a
A 44
B) 404
C) 403
D) 2021​

Answer 1

Answer:

B. 404

Step-by-step explanation:

Substitute:

3(1 - a) - 2(2 + a) + 2021 = 0

Apply Multiplicative Distribution Law:

3 - 3a - 4 - 2a + 2021 = 0

Combine like terms:

2020 - 5a = 0

Rearrange unknown terms to the left side of the equation:

-5a = 2020

Reduce the Greatest Common Factor on both sides of the equation:

a = 404