Solve 5(2x) = 7(x-1). Neeeeed help

Mathematics

2 answers:

Ray Of Light [21]2 years ago

8 0

Answer:

$\boxed{\bold{x=-\frac{7}{3}}}$

Step-by-step explanation:

Expand: $\bold{5\left(2x\right): \ 10x}$

Expand: $\bold{7\left(x-1\right): \ 7x-7}$

$\bold{10x=7x-7}$

Subtract 7x From Both Sides

$\bold{10x-7x=7x-7-7x}$

Simplify

$\bold{3x=-7}$

Divide Both Sides By 3

$\bold{\frac{3x}{3}=\frac{-7}{3}}$

Simplify

$\bold{x=-\frac{7}{3}}$

vekshin12 years ago

7 0

Answer:

If looking for x then X= -7/3.

Step-by-step explanation:

You might be interested in

Please help a girl out :)

Vilka [71]

Answer:

1/6

Step-by-step explanation:

I don't know how to use it using a number line sorry

-1/3 - (-1/2)

Two minuses give us a plus

so:

-1/3 + 1/2

make the denominators the same and what you multiply at the bottom you multiply at the top (check online about adding fractions if you don't understand)

so:

-2/6 + 3/6 = 1/6

8 0

2 years ago

Read 2 more answers

I need to write a decimal where the value of a digit is 1/10 as much as a digit in another place

KengaRu [80]

1/10 is the same as saying 10 times less

Refer to the diagram below
The digit as the first decimal place is worth 1/10
The digit as the second decimal place is worth 1/100 which is 1/10 worth the digit as the first decimal place

Example of two decimal numbers:

2.56 and 2.68

The digit 6 in 2.56 is 6/100
The digit 6 in 2.68 is 6/10

The digit 6 in 2.56 is 1/10 as much as the digit 6 in 2.68