1. The mistake Jenny made is in the third line where she simplified 1-2x+4x+5 to S-2x=4x+5. It should be 1-2x+4x+5=0.
2. To find the correct answer, we need to solve the simplified equation correctly. Starting from the simplification made by Jenny:
1-2x+4x+5 = 0
(1+5) + (4x-2x) = 0
6 + 2x = 0
Subtract 6 from both sides:
2x = -6
Divide by 2 on both sides to isolate x:
2x/2 = -6/2
x = -3
So, the correct answer is x = -3.
Use the information to answer the questions 6 and 7. Jenny solved the equation 1-(2x+4) = -4x +5. Her work is showen.
1-(2x+4)=4x+5
1-2x+4x+5
S-2x=4x+5
2x=0
x=0
1,What mistake did she make?
2. What is the correct answer? show your work.
1 answer
2 answers