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5 votes
Help find the value of x
1/2 (-10x + 4) = -4 (-3+2x) +8

User Joe M
by
7.2k points

2 Answers

4 votes

Answer:

x = 6

Explanation:

We know that,

( + ) × ( + ) = ( + )

( - ) × ( - ) = ( + )

( - ) × ( + ) = ( - )

Let us solve it now.


\sf (1)/(2) (-10x+4)=-4(-3+2x)+8

Solve the brackets.


\sf -(10x)/(2) +(4)/(2) =+12-8x+8\\\\\sf -5x +2 =20-8x

Add 8x to both sides.


\sf -5x+8x+2=20\\\\3x+2=20

Subtract 2 from both sides.


\sf 3x=20-2\\\\3x=18

Divide both sides by 3.

x = 6

User Kevin Mathew
by
7.1k points
1 vote

Answer:


x=6

Explanation:


(1)/(2) (-10x+4)=-4(-3+2x)+8

To make things easier, let's first start by rewriting
(1)/(2) as a decimal:


.5(-10x+4)=-4(-3+2x)+8

Distribute
.5 into
(-10x+4):


-5x+2=-4(-3+2x)+8

Distribute
-4 into
(-3+2x):


-5x+2=12-8x+8

Combine like terms:


-5x+2=20-8x

Add
8x to both sides of the equation:


3x+2=20

Subtract
2 from both sides of the equation:


3x=18

Divide both sides of the equation by the coefficient of
x, which is
3:


x=6

_

Check your work by substituting
6 into the initial equation:


.5(-10(6)+4)=-4(-3+2(6))+8


.5(-60+4)=-4(-3+12)+8


-30+2=12-48+8


-28=-28

The answer is correct!

User Tibbon
by
7.0k points