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aleksandrvk [35]
2 years ago
5

25 decreased by the product of a number and 3

Mathematics
1 answer:
Virty [35]2 years ago
3 0

Answer:

25-3x

Step-by-step explanation:

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4x+12=-7y<br> -y+12=4x<br><br> PLS HELP!!!!<br> Addition/ Elimination method
hoa [83]
4×+7y=-12 __ -4x-y=-12 ________ 0x+6y=-24 , so you eleminated by it self 6y/6=-24/6 , you get : y=-4 and then you plug in 4x+7(-4)=-12 , that's your answer 4x-28 =-12 , you divided in both side 4x=-12+28 , 4x=16 , and then x=16/4 =4 , so x=4
3 0
3 years ago
What number needs to be subtracted from both sides of the equation 40 = 25 + x in order to isolate the variable and solve for x?
SOVA2 [1]

Answer:

x = 15

Step-by-step explanation:

As given, the equation 40 = 25 + x

As on the R.H.S of the equation, there is one constant and a variable x

As to isolate the variable we have to subtract the same constant so that that constant gives 0.

As we have the constant value 25

So, subtract 25 from both side of the equation, we get

40 - 25 = 25 + x - 25

⇒15 = x

∴ we get

x = 15

3 0
2 years ago
Twin​ brothers, person A and person​ B, can mow their​ grandparent's lawn together in 40 minutes. Person A could mow the lawn by
Alex
22 minutes I believe
3 0
3 years ago
Gradinize cheese costs $1.28 per pound. How much would you pay for 7 pounds ?
Alenkasestr [34]

Answer:

I'm pretty sure the answer is 8.96

Step-by-step explanation:

1.28×7=8.96

8 0
3 years ago
I don’t understand these
BaLLatris [955]
So these are basically isolating the variables.
The first equation is 3g + 5 =17.
In order to isolate the variable, we would have to get g by itself, that means 5 would have to go. In order to do this, we would do the opposite. Since it is positive 5 we would add negative 5, in order for it to disappear. This works because a positive 5 and negative 5 cancel each other out. Whatever you do to one side of the equation you have to do to the other, since we subtract 5 on one side we have to subtract 5 on the other. Therefore we would do 17-5.
Now we have 3g=12
We know that 3g is basically 3 multiplied by g. The opposite of multiplication is division.Therefore we would divide by 3 on both sides.
The answer to the first question would be g= 4.
And if you want to check if your answer is correct you plug the value in.
So
3(4) + 5 =17


5 0
3 years ago
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