Solve the following system by the substitution method. {2x-7y=12 {-x+3.5y=-6

y=1

Step-by-step explanation:

hey! I know that I’m late but I decided to do this still, and you should definitly look at my work and understand how to do this more. THIS WILL NOT GO AWAY! sorry I’m late tho but just make sure you got this down. the Work and steps are in the picture!

x=-2

infinite number of lines, so there is an infinite number of equations.

step-by-step explanation:

there are an infinite number of line that passes through the point (-2,5)

x=-2   is one line that passes through the point

y = 5 is another line that passes through the point

(these two lines are perpendicular to each other).

since the number of   numbers are infinite and the slope is the ratio of two numbers,(change in y over change in x) we can have an infinite number of slopes.     our only condition is that it passes through the point (-2,5)

a 270° rotation about point p says on e d g e n u it y (had to space it out because it says it's a misspelling so i couldn't submit it