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Sonbull [250]
3 years ago
12

-10+5=7x-4how to i explain this step by step​

Mathematics
2 answers:
olasank [31]3 years ago
8 0

Answer:

5/7 x 4 = 2.8571 in decimal form.

o-na [289]3 years ago
6 0

Answer:

x = -1/7

Step-by-step explanation:

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

PEMDAS =

Parenthesis

Exponents (& Roots)

Multiplication

Division

Addition

Subtraction

& is the order of operation.

First simplify the expression to the left: -10 + 5 = 5 - 10 = -5

-5 = 7x - 4

Next, isolate the variable, x. Do the opposite of PEMDAS. Add 4 to both sides:

-5 (+4) = 7x - 4 (+4)

-5 + 4 = 7x

-1 = 7x

Divide 7 from both sides:

(-1)/7 = (7x)/7

-1/7 = x

x = -1/7

~

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Answer:

n = 0

Step-by-step explanation:

Let's solve for n, according to the linear equation given, this way:

10n + 0.3 = 0.1n + 0.3

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6 0
3 years ago
The sum of three and seven times a number is -74. What is the number?
Dima020 [189]
<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷ Form an equation with 'x' as the unknown number

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Subtract 3 from both sides:

7x = -77

Divide both sides by 7:

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The number is -11

<h3><u>✽</u></h3>

➶ Hope This Helps You!

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7 0
4 years ago
Read 2 more answers
A rectangle has length (x + 5)cm and width (x –2)cm. Its area is 60 cm 2
Ksivusya [100]

Area = length x width

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x = -10 and 7

Since the sides have to be a positive number we need to use 7

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The width = x-2 = 7-2 = 5 cm

7 0
3 years ago
Pls do answer correct for brainliest
nadya68 [22]
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Please help ASAP! I will mark Brainliest! Please answer CORRECTLY! No guessing!
ryzh [129]

Answer:

D is The correct  Answer

Step-by-step explanation:

4 0
4 years ago
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