3 years ago

-7-2x=7(x+8) What is the answer for this expression

Mathematics

1 answer:

sertanlavr [38]3 years ago

7 0

Answer:

x=-7

Step-by-step explanation:

1. Distribute the 7 into the parenthesis: -7-2x=7x+56

2. Combine like terms by doing the opposite operation to the numbers: -7=9x+56 (added 2x to 7x)

3. Subtract 56 to each side of the equation: -63=9x

4. To isolate the variable "x," divide each side by 9: x=-7

You might be interested in

Is x+y is an algebraic expression?

Elan Coil [88]

Step-by-step explanation:

Yes because it consists of letters

3 0

2 years ago

Read 2 more answers

3(4x+1)+6(x-3)<br><br><br>I need help with this

SVETLANKA909090 [29]

If you simplify the expression you will get 18x - 15.

8 0

2 years ago

Read 2 more answers

Transform the equation to isolate x: ax=bx+1. How is the value of x related to the difference of a and b

nasty-shy [4]

Answer:

x is the reciprocal of the difference of a and b.

Step-by-step explanation:

ax=bx+1

Subtract by bx on both sides

ax-bx=1

x(a-b)=1

x= 1/(a-b)

8 0

2 years ago

Read 2 more answers

Find the negative square root of 16 show your work

Nana76 [90]

Answer:

-4 or undefined

Step-by-step explanation:

7 0

3 years ago

−7y−4x=1 7y−2x=53 Solve the system of equations

Reptile [31]

-7y-4x=17y-2x=53
-4x=24y-2x=53
-2x=24y=53
24y+2x=53

You would have to solve one at a time.
y=53/24
y=2.21
x=53/2
x=26.5

3 0

3 years ago