Question

Solve: x + 9 = 5(4x – 2)
Select one:
a. 
b. –1
c. 1
d. 

Answer 1

What is the answer

Answer 2

I will really appreciate it if someone gives it to me

Answer 3

A is 11/9
B is -1/19

Answer 4

x + 9 = 20x - 10 [multiplying 5 inside] ok?

Answer 5

@Jesus98 ?

Answer 6

x + 9 = 5(4x – 2)
x + 9 = 20x - 10
x-x+9 = 20x-x-10 subtacting x on both sides
9+10 = 19x adding 10 on both sides
19= 19x

Answer 7

so x=?

Answer 8

@Jesus98 pls respond..any doubts so far?

Answer 9

19x=19
now divide 19 on both sides..thats it.

Answer 10

so x =?

Answer 11

\[x + 9 = 5(4x – 2)\]Rules of solving equations are that you can do pretty much anything, as long as you do it to both sides.

\[x+9 = 5(4x-2)\]first we use the distributive property to get rid of the parentheses:\[x+9=5*4x+5(-2)\]\[x+9=20x-10\]
now we want to get \(x\) by itself on the left side, and everything else on the right. We start by subtracting \(9\) from each side:
\[x+9-9 = 20x-10-9\]\[x=20x-19\]now we subtract \(20x\) from each side:
\[x-20x=20x-20x-19\]\[x-20x=-19\]\[1x-20x=-19\]\[x(1-20) = -19\]\[x(-19) = -19\]divide both sides by \(-19\)\[\frac{x(-19)}{-19} = \frac{-19}{-19}\]\[x=1\]

Important step: we check our answer by plugging it into the original formula and make sure it is true:

\[x+9=5(4x-2)\]\[1+9 = 5(4(1)-2)\]\[10=5(4-2)\]\[10=5(2)\]\[10=10\checkmark\]that made a true statement, so our answer is correct.

Answer 12

Thanks

Answer 13

I got one more for you

Answer 14

Whpalmer4

Answer 15

5p – 14 = 8p + 4

Answer 16

C. 1

Answer 17

c

Answer 18

\[5p-14=8p+4\]
subtract \(5p\) from both sides. subtract \(4\) from both sides. divide both sides by the coefficient of \(p\) (the number in front of it — in \(23c\), the coefficient is \(23\))

again, check your answer for correctness by plugging it into the equation and verifying a true statement results.

Answer 19

x=1

Answer 20

p=-6