Which equation shows the result of substituting and expression for y from the first equation in the given system?
(y=x+5
Lv-2x = 2
O (5-x) - 2x = 2
O (x + 5) - 2x = 2
O (x + 5) + 2x = 2
O (x + 5) - 2x = 0

40 points. given: two congruent angles ∠c and ∠r are supplementary. prove: ∠r and ∠c are both right angles. it doesn't have to be exactly 10 rows.statements reasons1. 1. 2. 2. 3. 3. 4. 4. 5. 5. 6. 6. 7. 7. 8. 8. 9. 9. 10. 10.