amireyechols04 amireyechols04

05-11-2020
Mathematics

contestada

how do you solve substitution for 7x+8y=17
y=10

Respuesta :

superisabelc superisabelc

05-11-2020

Answer:

x=-9

Step-by-step explanation:

First, subsitute

7x+8(10)=17

7x+80=17 Subtract by 80 on both sides to isolate the variable

7x=-63 Divide by 7 on both sides

x=-9

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