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16 votes
У + 4 = 3х
— 2х + 5 = 19
How to solve this

User Bunkus
by
5.1k points

1 Answer

1 vote

Answer:

x=-7, y=-25

Explanation:

I will name your equations as follows:

  1. у + 4 = 3х
  2. — 2х + 5 = 19

Start with equation 2 and solve for x. This is a two-step equation.


-2x+5=19\\-2x=14\\x=-7

Then, plug in your solution to equation 1:


y+4=3(-7)\\y+4=-21\\y=-25

User CnrL
by
4.8k points