boiboiboi69420 boiboiboi69420

25-10-2019
Mathematics

contestada

Solve -9x-10y=17 , -10x-10y=10

a. 7,8

b 7,-8

c -7,8

d -7,-8

Respuesta :

Sarah0404 Sarah0404

25-10-2019

Answer:

b. 7, -8

Step-by-step explanation:

Add the equations in order to solve for the first variable. Plug this value into the other equations in order to solve for the remaining variables.

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