All categories

2 years ago

What is the answer to 9x + 10 = -8

Mathematics

2 answers:

Bess [88]2 years ago

8 0

Answer: the answer should be x=-2

Kryger [21]2 years ago

8 0

Answer:

x = -2

Step-by-step explanation:

$9x+10=-8~(Given)\\\\9x+10-10=-8-10~(Subtract~10~on~both~sides)\\\\9x=-18~(Simplify)\\\\\frac{9x}{9}=\frac{-18}{9}~(Divide~9~on~both~sides)\\\\x=-2~(Simplify)$

You might be interested in

8 - 6 ÷ 3 + 11 = what is the answer

Murrr4er [49]

Answer:

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

The value of x = 60° 5 x 30°

nikklg [1K]

Answer:

Step-by-step explanation:

with reference angle 30°

perpendicular (p) = 5

hypotenuse (h) = x

Now

sin 30° = p / h

1 / 2 = 5 / x

x = 10

Hope it will help :)

6 0

2 years ago

Solve: x + y = 7 3x - 2y = 11 By using Substituting method.

Salsk061 [2.6K]

$\large\underline{\sf{Solution-}}$

$\sf \longmapsto x + y = 7 \: \: - - - (i)$

$\sf \longmapsto 3x - 2y = 11 \: \: - - - (ii)$

By first equation,

$\sf \longmapsto x + y = 7$

$\sf \longmapsto x = 7 - y$

Now, we can find the original value of y.

$\sf \longmapsto 3x - 2y = 11$

$\sf \longmapsto 3(7 - y) - 2y = 11$

$\sf \longmapsto 21 - 3y - 2y = 11$

$\sf \longmapsto 21 - 5y = 11$

$\sf \longmapsto - 5y = 11 - 21$

$\sf \longmapsto - 5y = - 10$

$\sf \longmapsto y = \dfrac{ - 10}{ - 5}$

$\sf \longmapsto y = 2$

Now, we can find the original value of x.

$\sf \longmapsto x + y = 7$

$\sf \longmapsto x + 2 = 7$

$\sf \longmapsto x = 7 - 2$

$\sf \longmapsto x = 5$

Therefore, the values of x and y are 5 and 2 respectively.

8 0

2 years ago

Read 2 more answers

2(x-7)+3=2x-10 This question has how many solutions

ycow [4]

I believe the answer is 0=1

8 0

2 years ago

Read 2 more answers

Christy earns $8 an hour for babysitting. She also earns a weekly bonus of $15 for helping children with their child's homework

kirza4 [7]

A) Christy worked a total of 17 1/2 hours

5 0

2 years ago