Question

Write a proof for the conjecture using the contrapositive. If 5x + 7 = -13, then x = -4.

Answer 1

Answer:

ans x=4

Step-by-step explanation:

• 5x + 7 = -13
• 5x = -13 -7
• 5x= -20
• x = -20/5
• x = -4
• so the answer is x= -4