Solve the equation. Show your work. 8x – 12 = 4x + 24

2 answers:

5 0

To find the value of x, we may add 12 to both sides of the equation and subtract 4x from the answer.
8x - 12 + 12 = 4x + 24 + 12
8x - 4x = 4x - 4x + 36
4x = 36
Divide both left hand and right hand side of the equation by 4 to give an answer of x = 9.

Len [333]3 years ago

3 0

Remember y ou can do anything to an equation as long as you do it to both sides

get 1x by itself

8x-12=4x+24
add 12 to both sides
8x=4x+36
minus 4x from both sides
4x=36
divide both sides by 4
x=9

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Kryger [21]

C. Is the correct answer

6 0

4 years ago

X = 2y-2 4x-9 = 11 Step by step please

Alex787 [66]

Answer x=5, y= 3.5

Find y by plugging the x value into the 2nd equation
4(2y-2) -9=11
8y - 8 - 9 =11 combine like terms
8y = 28 divide both sides by 8
y = 3.5

Now find x
Plug your y value into first equation
X = 2(3.5) -2
X= 7-2
X=5

You can check your work by putting your x or y values into the equations

For the first equation
5=2(3.5) -2
5=5

For the second equation
4(5) -9 = 11
20 - 9 = 11
11 =11