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3 years ago

What is the answer to -4x-10x

Mathematics

2 answers:

Ulleksa [173]3 years ago

4 0

Answer:

-14x is your answer

Step-by-step explanation:

when subtracting a negative with a positive you add and include the negative sign. this is because instead of decreasing, you are increasing your negative. another example is:

-2 - 6 = -8

on a number line, you would be going backwards. Your median is 0 everything to the left of zero is negative and goes up, everything to the right of zero is positive and goes up.

example:

-8, -7, -6, -5, -4, -3, -2, -1, 0 1, 2, 3, 4, 5, 6, 7, 8

love history [14]3 years ago

3 0

Answer:

you have to add similar elements

-4x-10x=-14x

Mark me brainliest if it helped

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Twice the difference of a number and 7 equals 5

RideAnS [48]

Hey there!

Let's write an equation given this information. We will use x to represent the number.

2(x-7)=5

Now, we use the distributive property to remove the parentheses.

2x-14=5

Now, we add 14 to both sides.

2x=19

We divide both sides by 2.

x=9.5

Therefore, our number is 9.5

I hope this helps!

4 0

4 years ago

If a/4 = 9/a, then a²=36 4a = 9a a + 4 = 9 + a a - 4 = 9 - a

Anna [14]

Answer:

Option A is correct.

The given expression : $\frac{a}{4} = \frac{9}{a}$ then;

$a^2 = 36$

Step-by-step explanation:

Given the expression: $\frac{a}{4} = \frac{9}{a}$

Cross multiplication the given expression following steps are as follow;

Multiply numerator of the left-hand fraction by the denominator of the right-hand fraction

Also, Multiply numerator of the right-hand fraction by the denominator of the left-hand fraction.

then, set the two products equal to each other.

Using cross multiplication, on the given expression;

$\frac{a}{4} = \frac{9}{a}$

First multiply the numerator of the left hand fraction(i.e,a ) by the denominator of the right hand fraction (i,e a)

we have;

$\frac{a \times a}{4} = 9$

Simplify:

$\frac{a^2}{4} =9$ [1]

now, multiply numerator of the right-hand fraction( i.e, 9) by the denominator of the left-hand fraction (i.e, 4 ) in [1]

we have;

$a^2 = 9\times 4$

Simplify:

$a^2 = 36$

Therefore, the given expression is equal to: $a^2 = 36$

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