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21 votes
21 votes
2(4z−1)=3(z+2)
How do you solve this? Plz show step-by-step

User Marcelo Sardelich
by
2.6k points

2 Answers

18 votes
18 votes
Open the brackets
8z - 2 =3z +6
Collect like terms
8z - 3z = 6 +2
5z = 8
Divide both sides by 5
Therefore 8/5 is the answer
User Swrobel
by
3.4k points
9 votes
9 votes

Answer:

z = 8/5 OR 1 3/5

Explanation:

Step 1: Simplify both sides of the equation.


  • 2(4z-1)=3(z+2)

  • 2(4z)+2(-1)=3(z)+3(2)

  • 8z-2=3z+6

Step 2: Subtract 3z from both sides.


  • 8z - 2 - 3z = 3z + 6 - 3x

  • 5x - 2 = 6

Step 3: Add 2 to both sides.


  • 5x - 2 + 2 = 6 + 2

  • 5x = 8

Step 4: Divide both sides by 5.


  • (5x)/(5) = (8)/(5)

  • x = (8)/(5) OR
    x = 1(3)/(5)
User Sonali Das
by
3.2k points