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3 years ago

How can I solve a multi step equation ex. 4x-9=7x+12

2 answers:

5 0

4x-9=7x+12
+9 +9
4x=7x+21
-7x -7x
-3x=21
x=-7
First, you add 9 to 12
Next, you subtract 7x to 4x
Lastly, you divide 21 by -3
Basically, you want to just get x by itself. Once you do that you will be all good. :)

harkovskaia [24]3 years ago

4 0

First you bring the x to one side so u subtract 4x from 7x and you get the new equation as -9=3x+12 then you just solve and you get x is equal to -7

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algol [13]

Answer:

2380

Step-by-step explanation:

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3 years ago

I need help how to get the answer please help!

ollegr [7]

Answer:

w=10

Step-by-step explanation:

You would have to set 5w-4=46.

5w-4=46

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7 0

3 years ago

Read 2 more answers

What is the solution to the inequality 0.8x+20<1.2x−40?

LuckyWell [14K]

Answer:x=150

Step-by-step explanation:

Step 1: Subtract 1.2x from both sides.

0.8x+20−1.2x=1.2x−40−1.2x

−0.4x+20=−40

Step 2: Subtract 20 from both sides.

−0.4x+20−20=−40−20

−0.4x=−60

Step 3: Divide both sides by -0.4.

−0.4x

−0.4

−60

−0.4

3 0

3 years ago

Please perform the indicated operation.

Alja [10]

Answer:

the correct answer is 21.07070206.

6 0

3 years ago

How many solutions does the following equation have?

RoseWind [281]

Answer:

There will be No solution for the equation $9x - 4 = - 3x + 5 + 12x$ . Option B is correct.

Step-by-step explanation:

We need to determine how many solutions the equation $9x - 4 = - 3x + 5 + 12x$ have.

Solving the equation and finding the solutions

$9x - 4 = - 3x + 5 + 12x$

Combining like terms, Moving 3x and 12x to left side of equality and changing their signs and moving 4 on right side of equation and changing sign.

$9x +3x-12x = 5 + 4$

Simplifying

$12x-12x = 9\\0=9$

Solving the equation we get 0=9 which is false. So, there will be No solution for the equation $9x - 4 = - 3x + 5 + 12x$ . Option B is correct.

5 0

3 years ago