X – 7y=-1
-X + 9y = 3

y=1

x=6

Step-by-step explanation:

just move -7y and x=-1+7y

-(-1+7y)+9y=3

1-7y+9y=3

2y=2

y=1

x-7=-1

x=6

answer: 2530

hope this

the answer for this question is : 360°

step-by-step explanation:

we have been given a triangle   we need to tell which one of these is a triangle below to map onto itself.

360° rotation is the complete rotation which eventually leads to the same figure which is given.

the correct will be, that is 360° that will cause the triangle below to map onto itself.