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3 years ago

X+3+7=2x-10x-x someone please help me

Mathematics

2 answers:

Dima020 [189]3 years ago

5 0

Answer:

Step-by-step explanation:

x=-1

Factor out the x and solve

Alexxx [7]3 years ago

4 0

Answer:

x = -1

Step-by-step explanation:

Add like terms (3 and 7, 2x and -10x and -x)

x + 3 + 7 = 2x - 10x - x

x + 10 = -9x

Subtract x from both sides:

10 = -10x

Divide both sides by -10:

-1 = x

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Answer:

$n = 2662.56\sigma^2$

Step-by-step explanation:

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4 0

4 years ago

The ratio of the number of boys to that of girls in a school is 4:3. If the number of girls in the school is 162, find the numbe

timofeeve [1]

Answer:

total number of boys in skool is 216

And

ratio of girls to boys is a 3:4

Step-by-step explanation:

let total no. of boys be X

ACCORDING TO QUESTION

ratio of boys to girls = 4:3

total number of girls = 162

now

4/3=X/162

or, 4×162= 3x

or, 4×162/3= X

hence

X = 216

therefore total number of boys is 216

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ratio of girls to boys is =162/216

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3 years ago

Given the equation 8+ 9x = 89 Is x=9 a solution to the equation?

tamaranim1 [39]

Answer:

X=9

Step-by-step explanation:

That is correct, 8 + 9(9) = 89

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