Answered

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How to work out 3b/7 - 1 = 5 precise step by step?

Sagot :

Smillat

Answer:

b = 14

Step-by-step explanation:

3b/7 -1 = 5

3b/7 = 6

3b = 6x7 = 42

b = 42/3

b = 14

themathexpertise

Answer:

b = 14

Step-by-step explanation:

3b/7 - 1 = 5

Add 1 to both sides.

3b/7 = 6

Multiply both sides by 7 to cancel the fraction.

3b = 42

Divide both sides by 3 to get b by itself.

b = 14

Proof:

3b/7 - 1 = 5

Insert variable.

3(14)/7 - 1 = 5

Multiply.

42/7 - 1 = 5

Divide.

6 - 1 = 5

Subtract.

5 = 5

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