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3 years ago

Algebra solving 3v-9=7+2v-v

Mathematics

2 answers:

mezya [45]3 years ago

5 0

Answer:

Step-by-step explanation:

3v-9=7+2v-v

3v-9=7+v

3v-v-9=7

2v-9=7

2v=7+9

2v=16

v=16/2

v=8

Mkey [24]3 years ago

4 0

Answer:

v=8

Step-by-step explanation:

3v-9=7+2v-v

3v-9=7+v

2v=16

v=8

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Step-by-step explanation:

$\bold{METHOD\ 1}\\\\6d=8e\qquad\text{divide both sides by 6}\\\\d=\dfrac{8}{6}e\to d=\dfrac{4}{3}e\\\\\text{Substitute it and}\ f=2e\ \text{to the ratio}\ d:e:f:\\\\\dfrac{4}{3}e:e:2e\qquad\text{cancel}\ e\\\\\dfrac{4}{3}:1:2\qquad\text{multiply by 3}\\\\\huge\boxed{4:3:6}$

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