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Dafna1 [17]
3 years ago
11

Marina is solving the equation below by using the multiplicative inverse, or the reciprocal. One-fifth (x minus 2) = 20 By which

number should Marina multiply both sides of the equation as the first step in solving it?
Mathematics
2 answers:
miskamm [114]3 years ago
6 0

Answer:

Step-by-step explanation:

Given the equation:

1/5 × (x - 2) = 20

First step to solving the equation is

By multiplying both sides by the value of 5.

That will give,

x - 2 = 100

x = 100 + 2

= 102

kirill [66]3 years ago
5 0

Answer:

The number is 5

Step-by-step explanation:

Using reciprocal method

1/5(x-2)=20

We'll multiply the both sides by the reciprocal of 1/5 which is 5

(1/5)*5(x-2)= 20*5

1(x-2)= 100

X-2 = 100

X= 100+2

X = 102

But note that we multiplied the equation by 5 which is reciprocal of 1/5 as the first step.

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