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Alik [6]
2 years ago
12

What is the value of z in the equation 5(2z + 4) =0

Mathematics
2 answers:
Komok [63]2 years ago
6 0

Answer:

-2

Step-by-step explanation:

5(2z + 4) = 0

Divide both sides by 5.

2z + 4 = 0

Subtract 4 from both sides.

2z = -4

Divide both sides by 2.

z = -2

Mazyrski [523]2 years ago
3 0

Answer:

Z=-2

Step-by-step explanation:

5(2z+4)=0

2z+4=0/5=0

2z=0-4=-4

z=-4/2=-2

z=-2

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Answer:

a = 7

Step-by-step explanation:

3(1 - 2a) = -3a - 18

3 - 6a = - 3a - 18

Add 18 to each side:

3 + 18 - 6a = - 3a - 18 + 18

21 - 6a = - 3a

Add 6a to each side:

21 - 6a + 6a = - 3a + 6a

21 = 3a

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The statement regarding the expansion of (x + y)" that is correct is D. The coefficients of yn - 1 and yn – 1 both equal 1.

<h3>How to expand?</h3>

It should be noted that for any positive integer, n, the expression of (x + y)^n will be C(n,0)x^n + C+n, 1)x^n-1 .... C(n, n)y^n.

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