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3 years ago

Solve the equation for x, x-3= -x+5

Mathematics

2 answers:

DanielleElmas [232]3 years ago

8 0

x−3=−x+5

Add x to both sides.

x−3+x=−x+5+x

2x−3=5

Add 3 to both sides.

2x−3+3=5+3

2x=8

Divide both sides by 2.

2x /2 = 8 /2

x= 4

Oksanka [162]3 years ago

6 0

Answer:

x=4

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Hope this helps!!! Brainliest is appreciated.

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Solve the System using elimination. 5x-2y=15 7x+7y=-28

steposvetlana [31]

Answer:

x=1 y=-5

Step-by-step explanation:

7(5x-2y=15) ---> 35x-14y=105

2(7x+7y=-28) --> + 14x+14y=-56

49x=49 --->x=1

5(1)-2y=15 ---> 5-2y=15 ---> -2y=10 ---> y=-5

8 0

3 years ago

A rectangle is inside a circle with a 5 cm radius.

MrRa [10]

Answer: 30.5 cm²

To get the the area of the rectangle all we have to do is:

Rectangle Area = 6 × 8 = 48 cm²

Same thing to the circle, multiply the radius and pi:

Circle Area = 3.14 x 5² = 78.5 cm²

We have to subtract the two areas to find the shaded area.

78.5 - 48 = 30.5 cm²

I hope this helps!

3 0

3 years ago

What expression represents the product of 3 and (n + 1.8)?

Oduvanchick [21]

Answer:

Step-by-step explanation:

3n + 5.6?

I don't fully understand what you're asking.

4 0

3 years ago

What is y=-4/3x +6. y=2

Mekhanik [1.2K]

The given equation is:
[/tex]y=-\frac{4}{3}x+6 [/tex] and we need to evaluate this for y=2.
So, first step is to plug in 2 for y in the above equation. Therefore,

$2=-\frac{4}{3} x+6$
$2*3=-\frac{4}{3} x*3+6*3$ Multiply each sides by common denominator 3
$6=-4x+18$
6-18= -4x Subtract 18 from each sides.
-12=-4x
$-\frac{12}{-4} =-\frac{4x}{-4}$
So, x=3

5 0

3 years ago

WHOEVER ANSWERS CORRECTLY I'LL GIVE BRAINLIEST!!!!!!!!!

Gennadij [26K]

Answer:

$5^1^5$

Step-by-step explanation:

$\frac{(5^3)^9}{5^1^2}$

$=\frac{5^2^7}{5^1^2}$

$=5^1^5$

8 0

2 years ago