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3 years ago

Solve. 5y - 10 = -25 Pls explain

2 answers:

5 0

5y-10=-25
Move constant to the right by adding its opposite to both sides
5y-10+10=-25+10
Eliminate the opposites
5y=-25+10

-25+10
Keep the sign of the number with the lager absolute value and subtract the smaller absolute value from the larger
-(25-10)
Subtract the nubers
-15
5y=-15
Divide both sides of the equation by 5
5y/5=-15/5
any expression divided by itself equals 1
y=-15/5
calculate the quatient
y=-3

Ira Lisetskai [31]3 years ago

4 0

5y-10=-25
5y=-25+10 addition property of equa
5y=-15 simplifying
Y=-15/5 dividing property
Y=-3

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3 years ago

P is the set of natural numbers less than 6.

Wewaii [24]

Answer:

Therefore,

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Step-by-step explanation:

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Natural numbers are those numbers starting from 1 , 2 , 3 , 4 ,......... and so on.

Also it is denoted by 'N'.

Zero does not include a natural number.

Therefore the set of natural numbers less than 6 is 1 , 2 , 3 , 4 , and 5.

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4 years ago

Elimination method 4x-2y=48 2x+6y=-18

yulyashka [42]

$4x-2y=48\\ \\ 2x+6y=-18$

First we'll multiply the second equation by -2

$-2\cdot (2x+6y)=-2\cdot -18\\ \\ -4x-12y=36$

Now let's add the new equation and the first one.

$(4x-2y)+(-4x-12y)=48+36\\ \\ 4x-4x-2y-12y=48+36\\ \\ -14y=84\\ \\ y=\frac { 84 }{ -14 } \\ \\ y=-6$

We found y's value. We'll plug it in one of the equations to find x's value.

$y=-6\\ \\ 4x-2y=48\\ \\ 4x-2\cdot -6=48\\ \\ 4x+12=48\\ \\ 4x=48-12\\ \\ 4x=36\\ \\ x=\frac { 36 }{ 4 } \\ \\ x=9$

Solution ;

(9, -6)

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