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20 votes
X + y = 20 and 2x + y =25 how can i solve this equation

User Ori Seri
by
5.2k points

1 Answer

9 votes

Answer: I will give you a answer for both of them.

Explanation:

First equation: x+y=20

1. Subtract y from both sides.

x=20−y

Second equation: 2x+y=25

1. Subtract y from both sides.

2x=25−y

2. Divide both sides by 2.


X
=
(25-y)/(2)

User Rguerin
by
5.3k points