373,160 views
20 votes
20 votes
Please help with problem 21 Algebra 1, it's in the attachment.

Please help with problem 21 Algebra 1, it's in the attachment.-example-1
User TamerM
by
2.6k points

1 Answer

16 votes
16 votes

Step-by-step explanation:

You want to identify the step that is occurring on each line of the solution to the equation 2(8u+2) = 3(2u-7).

1. 2(8u+2) = 3(2u-7) . . . . Original Equation

2. 16u +4 = 6u -21 . . . . Apply the distributive property

3. 16u +4 -6u = 6u -21 -6u . . . . subtract 6u from both sides

4. 10u +4 = -21 . . . . collect terms

5. 10u -4 = -21 -4 . . . . subtract 4 from both sides

6. 10u = -25 . . . . collect terms

7. 10u/10 = -25/10 . . . . divide both sides by 10

8. u = -2.5 . . . . simplify

User Li Xiong
by
3.1k points