63.2k views
1 vote
Helpppp fasttttttttt pleaseeeeeeeee

Helpppp fasttttttttt pleaseeeeeeeee-example-1
User AndrewTet
by
8.4k points

2 Answers

5 votes
Number 3 I believe
User Oatsoda
by
8.1k points
0 votes

Answer:

4(x-1)+9=17

Explanation:

3(-2x+1) + 5 = 3x-4-5x

expand

-6x + 3 + 5 = 3x-4-5x

-6x + 8 = -2x - 4

add 2x to both sides to put all x values + coefficients on one side

-4x + 8 = -4

subtract 8 from both sides to isolate x and its coefficient

-4x = -12

divide both sides by -4 to isolate x

x = 3

plug x=3 into each option to see if it works

1. 5(3+3)-4 = 30-4 = 26 != 10

2. 2(3+1) = 8 != 4

3. 4(3-1)+9 = 17 = 17

4. 4(3)+7 = 19 != 3+8 = 11

User Twi
by
8.6k points

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