3 years ago

Which expressions are equivalent to 3x+3(x+y)

Mathematics

1 answer:

dedylja [7]3 years ago

3 0

Answer:

Which expressions are equivalent to

3x+3(x+y)

= 3x² + 3xy + 3x + 3y

Step-by-step explanation:

(3x + 3) (x + y)

= 3x² + 3xy + 3x + 3y

You might be interested in

Complete the table of values for y=6-2x Also please work out 6-2x=3

Whitepunk [10]

Answer:

Step-by-step explanation:

x=0 y=6-2*0=6

x=1 y=6-2*1=4

x=2 y=6-2*2=2

x=3 y=6-2*3=0

6-2x=3

-6 -6

-2x=-3

2x=3

:2 :2

x=3/2

x=1.5

3 0

3 years ago

I need help with this question!!

Mashcka [7]

Answer:

QR = 5.

Step-by-step explanation:

Because the parallelograms are similar then the corresponding sides are in the same ratio.

So AB / PQ = BC / QR

9/3 = 15 / QR

15 / QR = 3

QR = 15/3

= 5. (answer)

7 0

3 years ago

Xkslgmvkdkskfnfjndngkckgkdks

NeX [460]

X-3=66
x=69

69+41+(y-9)=180
110+y-9=180
101+y=180
y=79

7 0

3 years ago

How to solve the equation 3/7 *49=x

rjkz [21]

Answer:

x=21

Step-by-step explanation:

well, geez - just do the math!

3/7 * 49 = 21

8 0

3 years ago

Help me please How many solutions does the equation x -4 = 12 - 2x have? Explain. - ? .

MA_775_DIABLO [31]

Answer: one solution.

Step-by-step explanation:

$\dfrac{2}{3} x-4=12-2x\\\\\dfrac{2}{3} x+2x=12+4\\\\2\dfrac{2}{3} x=16\\\\\dfrac{8}{3} x=16\\\\8x=16 \cdot 3\\\\8x=48\\\\x=\dfrac{48}{8} =6$

This equation has one solution: x = 6.

8 0

3 years ago