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3 years ago

Solve for y y-(-5)=-7

2 answers:

7 0

Y - (-5) = -7
---------------------------
Simplify
y + 5 = -7
-------------------------------------
Subtract 5 from each side
y + 5 - 5 = -7 - 5
y = -12
--------------------------------------------
y = -12 is your answer

nataly862011 [7]3 years ago

4 0

So,
y+5=-7
subtract both sides by -5
y=-7-5
y=-12

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Answer:

Step-by-step explanation:

STEP

Equation at the end of step 1

STEP

Equation at the end of step

STEP

2x3 - x2 - 6x

Simplify —————————————

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STEP

Pulling out like terms

4.1 Pull out like factors :

2x3 - x2 - 6x = x • (2x2 - x - 6)

Trying to factor by splitting the middle term

4.2 Factoring 2x2 - x - 6

The first term is, 2x2 its coefficient is 2 .

The middle term is, -x its coefficient is -1 .

The last term, "the constant", is -6

Step-1 : Multiply the coefficient of the first term by the constant 2 • -6 = -12

Step-2 : Find two factors of -12 whose sum equals the coefficient of the middle term, which is -1 .

-12 + 1 = -11

-6 + 2 = -4

-4 + 3 = -1 That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -4 and 3

2x2 - 4x + 3x - 6

Step-4 : Add up the first 2 terms, pulling out like factors :

2x • (x-2)

Add up the last 2 terms, pulling out common factors :

3 • (x-2)

Step-5 : Add up the four terms of step 4 :

(2x+3) • (x-2)

Which is the desired factorization

Trying to factor by splitting the middle term

4.3 Factoring 2x2-7x+6

The first term is, 2x2 its coefficient is 2 .

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Step-1 : Multiply the coefficient of the first term by the constant 2 • 6 = 12

Step-2 : Find two factors of 12 whose sum equals the coefficient of the middle term, which is -7 .

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Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -4 and -3

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Step-4 : Add up the first 2 terms, pulling out like factors :

2x • (x-2)

Add up the last 2 terms, pulling out common factors :

3 • (x-2)

Step-5 : Add up the four terms of step 4 :

(2x-3) • (x-2)

Which is the desired factorization

Canceling Out :

4.4 Cancel out (x-2) which appears on both sides of the fraction line.

Final result :

x • (2x + 3)

————————————

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