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3 years ago

What is the answer to this problem?7-3x - 15=19

Mathematics

2 answers:

sergij07 [2.7K]3 years ago

6 0

The answer is x = -9

marshall27 [118]3 years ago

3 0

X=-9 is the answer because you combine like terms first

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Is this correct???

GaryK [48]

Answer:

There's supposed to be nothing in the 7 and 8 columns

Step-by-step explanation:

You were good, but there aren't any in the 7 or 8 columns, making 9 an outlier.

hope this helps:)

5 0

3 years ago

el teatro tiene 20 filas de asientos con 18 asientos en cada fila. Los boletos cuestan $5.00. El costo si se vende todos los asi

ziro4ka [17]

El costo sería $1,800

3 0

3 years ago

Find the term that must be added to the equation x2 6x=1 to make it into a perfect square.

andrezito [222]

The value added to the equation $$x^2-6x=1$ exists $$x^2-6x+9=10$ .

<h3>What is a perfect square?</h3>

A perfect square exists as a number that can be described as the product of an integer by itself or as the second exponent of an integer.

The perfect square trinomial exists

$(a$ ± $b)^2$ = $a ^2$ ± 2ab + $b ^2$

$$x^2-6x=1$

$x^2-2*3x=1$

then $$2ab = 2 * 3*x = 2 * x *3$

The value of a = x and b = 3

$$b^2=3^2=9$

$$x^2-6x+9=1+9$

$$x^2-6x+9=10$

The value added to the equation $$x^2-6x=1$ exists $$x^2-6x+9=10$ .

To learn more about perfect square refer to: brainly.com/question/6946048

#SPJ4

3 0

2 years ago

Can you help me with destributive property

Semmy [17]

So it’s like

ab + ac = a(b + c)

7 0

3 years ago

How many pounds of a 4% solution of borax must be added to 24 pounds of a

Marrrta [24]

Answer:

8 pounds of 4% solution of borax

Step-by-step explanation:

Let x be the 4% solution

24 pounds of 12% solution

obtain a 10% solution of borax that is (x+24) pounds

4% is 0.04 and 12% is 0.12 , 10% is 0.1

$0.04x+24(.12)=0.1(x+24)$

solve the equation for x

$0.04x+24(.12)=0.1(x+24)\\0.04x+2.88= 0.1x+2.4\\2.88= 0.06x+2.4\\0.48=0.06x\\x=8$

so 8 pounds of 4% solution of borax

6 0

3 years ago