All categories

1 year ago

Whats the solution set of the following equation -8×+×+15=-7×+12

Mathematics

1 answer:

Leno4ka [110]1 year ago

8 0

Given data:

The given equation is -8x+x+15=-7x+12.

The given equation can be written as,

$\begin{gathered} -8x+x+15=-7x+12 \\ -7x+15=-7x+12 \\ 15=12 \end{gathered}$

The above expression is false.

Thus, there is no value of x, so the answer is ϕ.

You might be interested in

What is the value of x?

Hatshy [7]

Answer:

x=84

Step-by-step explanation:

the sum of the angles in a pentagon is always 540 so do

540-131-108-107-110=84

8 0

2 years ago

Read 2 more answers

The fifth grade students at East street decided to host a fundraiser for red ribbon week they planed to buy 240 inches of red ri

mixas84 [53]

Answer:

(Amount for 1 inch of red ribbon) x (240) = total cost

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

an airline is trying to promote its new Boston to Atlanta flight. the usual price for this flight is $315.00. however the airlin

Veronika [31]

$\begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{40\% of 315}}{\left( \cfrac{40}{100} \right)315}\implies 126~\hfill \underset{\textit{after discount}}{\stackrel{315~~ - ~~126}{189}}$

8 0

1 year ago

1. Given the following relation, determine the inverse relation.

gayaneshka [121]

Answer:

1. a

2. $f^{-1} (x)=\frac{x}{2} +2$

Step-by-step explanation:

1. Since there is one value of y for every value of x in (−1,0),(−4,5),(3,2),(−3,5), this relation is a function.

2. To find the inverse, interchange the variables and solve for y.

$f^{-1} (x)=\frac{x}{2} +2$

5 0

2 years ago

How do I do this <br> X+y=-4<br> 3x-6y=15

avanturin [10]

Answer:

x=-1, y=-3. (-1, -3).

Step-by-step explanation:

x+y=-4

3x-6y=15

---------------

x=-4-y

3(-4-y)-6y=15

-12-3y-6y=15

-12-9y=15

9y=-12-15

9y=-27

y=-27/9

y=-3

x+(-3)=-4

x-3=-4

x=-4+3

x=-1

8 0

3 years ago