dunaway0114200p1qssk dunaway0114200p1qssk
  • 31-12-2019
  • Mathematics
contestada

Solve for a.

7a - 2b = 5a + b

a = 2b
a = 3b
a = a equals StartFraction 3 Over 2 EndFraction b.b
a = a equals StartFraction 2 Over 3 EndFraction b.b

Respuesta :

gmany
gmany gmany
  • 31-12-2019

Answer:

[tex]\large\boxed{a=\dfrac{3b}{2}=\dfrac{3}{2}b=1.5b}[/tex]

Step-by-step explanation:

[tex]7a-2b=5a+b\qquad\text{add}\ 2b\ \text{to both sides}\\\\7a-2b+2b=5a+b+2b\\\\7a=5a+3b\qquad\text{subtract}\ 5a\ \text{from both sides}\\\\7a-5a=5a-5a+3b\\\\2a=3b\qquad\text{divide both sides by 2}\\\\\dfrac{2a}{2}=\dfrac{3b}{2}\\\\a=\dfrac{3b}{2}[/tex]

Answer Link
di0n
di0n di0n
  • 22-06-2022

Answer:

C. a = 3/2b

Step-by-step explanation:

I did the quiz

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