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2 years ago

If a+2b/a-b =2/3 then b/a=?

Mathematics

2 answers:

Dominik [7]2 years ago

6 0

Answer:

$\frac{b}{a}$ = - $\frac{1}{8}$

Step-by-step explanation:

Given

$\frac{a+2b}{a-b}$ = $\frac{2}{3}$ ( cross- multiply )

2(a - b) = 3(a + 2b) ← distribute parenthesis on both sides )

2a - 2b = 3a + 6b ( subtract 3a from both sides )

- a - 2b = 6b ( add 2b to both sides )

- a = 8b ( divide both sides by 8 )

- $\frac{1}{8}$ a = b ( divide both sides by a )

- $\frac{1}{8}$ = $\frac{b}{a}$

gizmo_the_mogwai [7]2 years ago

6 0

Answer:

-1/8

Step-by-step explanation:

a+2b=2

a-b=3

Solve Simultaneous equations by Formula 1 - Formula 2

2b - (-b) = 2-3

3b = -1

b= -1/3

so: a - (-1/3) = 3

a = 8/3

b/a=

(8/3) / (-1/3)

= (8/3) * (3/-1)

simplify

=-1/8

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If a+2b/a-b =2/3 then b/a=?​

If a+2b/a-b =2/3 then b/a=?