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Free_Kalibri [48]
2 years ago
15

How do you decide which variable to isolate in order to use the substitution method to solve a system of linear equation?​

Mathematics
1 answer:
Kazeer [188]2 years ago
5 0
It doesn’t really matter which variable you isolate first but usually you would use the one that’s by itself already. like for example one of the equations was y = 8. you would already have your y solve for so you would just have to plug that in for y in the other equation. personally, i usually do x first unless one of the equations has either x or y by itself already. i think its easier to just do x first and then solve for y after that, but it just depends on what the equations are; sometimes it might be easier to just do y first. hope this helps!
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