Help with substitution

x=5

y=1

Step-by-step explanation:

First, put  x=2y+3 inside 2x, which is the top equation. This will come out as 2(2y+3)-3y=7.

If you distribute, it would become 4y-6-3y=7. Then you have to combine like terms to get y+6=7

Add 6 on both sides to get y=1.

Put the value of y, which is 1 into the top or bottom equation. I would prefer the bottom equation because it is simpler. The equation would come out as

x=2(1)+3

x=2+3

x=5

answer: the two figures are congruent.

step-by-step explanation: they're congruent because figure efgh is reflected across the x and y axis but it was also rotated.

hope it !