3 years ago

X+21+3x+9 solve for x

Mathematics

1 answer:

frez [133]3 years ago

7 0

Answer:

This is not an equation. It is an expression, you can't solve for x in an expression

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I need it step by step

elena-s [515]

Answer:

Step-by-step explanation:

we want y by itself...sooo

y - 19 = - $\frac{6}{10}$ (x - (-5))

y - 19 = - $\frac{6}{10}$ (x+5)

y - 19 = - $\frac{6}{10}$ x - $\frac{6}{2}$

y = - $\frac{6}{10}$ x - 3 +19

y = - $\frac{6}{10}$ x + 16

4 0

3 years ago

What is the complete factorization of r2 - 6r - 9s2 + 9? A) (r - 3 + 3s)(r - 3 - 3s) B) (r + 3 + 3s)(r - 3 - 3s) C) (r - 3 + 3s)

nikitadnepr [17]

$r^2-6r-9s^2+9=r^2-6r+9-9s^2=r^2-2\cdot r\cdot3+3^2-9s^2\\\\\text{use}\ (a-b)^2=a^2-2ab+b^2\\\\=(r-3)^2-9s^2=(r-3)^2-(3s)^2\\\\\text{use}\ a^2-b^2=(a-b)(a+b)\\\\=(r-3-3s)(r-3+3s)\to A$

6 0

3 years ago

Which is the correct input-output table for the function g(x)=-1/2(4x+6)

Sonbull [250]

Answer: The third choice.

Step-by-step explanation: To find the first output, start with your first input. In this case, it's -2, so your equation would be g(-2)= -1/2(4(-2)+6). Start by solving inside the parenthesis. 4x-2=-8 and -8+6=-2. -1/2x-2= 1, so your first output should be 1. The only choice that has this is the third one, so that is your answer. Hope I could help :)

4 0

3 years ago

Kazeer [188]

Answer:

h = A*2/a+b

Step-by-step explanation:

5 0

3 years ago

Determine 2 numbers such that their sum divided by 4 is equal to 14. The greater number increased by 24 equals three times the s

Leona [35]

Answer:

the big number=36 the small number=20

Step-by-step explanation:

14x4=56

56+24=80

80/4=20

80-20=60

60-24=36

20+36=56

56/4=14

3 0

3 years ago

X+21+3x+9 solve for x​

X+21+3x+9 solve for x