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ArbitrLikvidat [17]
3 years ago
8

Solving multi-step equations 49 + 2x = 6x + 52

Mathematics
1 answer:
Bezzdna [24]3 years ago
4 0

Answer:

x = - \frac{3}{4}

Step-by-step explanation:

Given

49 + 2x = 6x + 52 ( subtract 6x from both sides )

49 - 4x = 52 ( subtract 49 from both sides )

- 4x = 3 ( divide both sides by - 4 )

x = \frac{3}{-4} = - \frac{3}{4} = - 0.75

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300 is 60% of what number?
abruzzese [7]

Answer:

500

Step-by-step explanation:

5 0
3 years ago
(-3x)²-(3x-2)²-6*(2x-1.5)
Ilya [14]
Without the instructions, I can only assume that you are to "expand the given expression."

Following order of operations rules requires that (3x-2)^2 and -6(2x-1.5) be evaluated first.

(3x-2)^2 = 9x^2 - 12x + 4   and    -6(2x-1.5) = -12x + 9

Then we have 9x^2 - (9x^2 - 12x + 4) -12x + 9

the 9x^2 terms cancel, leaving  us with 12x - 4 - 12x + 9 = 5 (answer)

4 0
3 years ago
OPEN ENDED QUESTION
posledela

Answer: I hope this helps :)

Substitution:  45+15(6-1)

Simplify:  120

Step-by-step explanation:

Calculate within parenthases (6-1) =5    =45+15(5)

Multiply left to right 15(5)=75      =45+75

Add leftg to right 45+75=120

Answer = 120

4 0
3 years ago
Solve for x:-ax+3b>5
Salsk061 [2.6K]
Our current equation is:
-ax + 3b > 5

Our objective is to solve for x, so let's first get -ax by itself.
Subtract 3b from both sides.

-ax > -3b + 5
Now, we have -a multiplying x, so we need to perform the opposite order of operations (like previously shown with 3b).
Divide both sides by -a.
Remember to flip the inequality when multiplying or dividing by a negative.

x <_ (-3b + 5)/-a is your final answer.

I hope this helps!
7 0
3 years ago
Find the area of the triangle.<br> 5<br> 13
Svetach [21]
The missing side is 12
5x12=60/2=30
4 0
3 years ago
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