da102016 da102016

04-03-2021
Mathematics

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2x + 2y = −8
3x − 2y = 33

Respuesta :

04-03-2021

Step-by-step explanation:

2x+2y= -8

3x-2y= 33

first cancel out +2y&-2y

then chose 1 equation...let's take the first one and then 2x= -8
divided both sides by 2:x= -4
then substitute the value of x in the second equation:3(-4)-2y=33
-12-2y=33
2y=33+12
2y=45
divide both sides by 2: y=22.5

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