Respuesta :
Answer:
z = 14
Step-by-step explanation:
Step 1: Write equation
(2z - 3)/5 - (z - 6)/4 = 3
Step 2: Solve for z
- Multiply both sides by 20: 4(2z - 3) - 5(z - 6) = 60
- Distribute: 8z - 12 - 5z + 30 = 60
- Combine like terms: 3z + 18 = 60
- Subtract 18 on both sides: 3z = 42
- Divide both sides by 3: z = 14
Step 3: Check
Plug in z to verify it's a solution.
(2(14) - 3)/5 - (14 - 6)/4 = 3
(28 - 3)/5 - 8/4 = 3
25/5 - 2 = 3
5 - 2 = 3
3 = 3
Hi there!
Answer:
[tex]\boxed{z = 14}[/tex]
Step-by-step explanation:
[tex](2z - 3) \div 5 - (z - 6) \div 4 = 3[/tex]
Ok this should be easy, lol!
⇒First you going to simplify both sides of the equation.
[tex]\frac{2z - 3 }{5} - (\frac{z - 6}{4}) = 3[/tex]
[tex]\frac{2}{5}z + \frac{-3}{5} + \frac{-1}{4}z + \frac{3}{2} = 3[/tex] ⇒Then Distribute.
- ⇅⇅ -
⇒Now combine like terms.
[tex]( \frac{2}{5}z + \frac{-1}{4}z) + (\frac{-3}{5} + \frac{3}{2}) = 3[/tex]
[tex]\frac{3}{20}z + \frac{9}{10} = 3[/tex]
⇒Second you're gonna subtract 9/10 from both sides.
[tex]\frac{3}{20}z + \frac{9}{10} - \frac{9}{10} = 3 - \frac{9}{10}[/tex]
[tex]\frac{3}{20}z = \frac{21}{10}[/tex]
⇒Now, for the last step, multiply both sides by 20/3.
[tex](\frac{20}{3}) * (\frac{3}{20}z) = (\frac{20}{3} ) * (\frac{21}{10})[/tex]
Now you understand why z = 14!
Have a good day/night!