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3 years ago

-3(x+2)=6+2x+8 how to solve for x

Mathematics

1 answer:

taurus [48]3 years ago

5 0

Answer:

x = - 4

Step-by-step explanation:

-3(x+2)=6+2x+8

-3x - 6 = 14 + 2x (-3 * 2 = -6)

-3x -2x = 14 + 6

-5x = 20

x = 20/ -5

x = -4

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3 years ago

For what value of x is sq 896z^15/225z^6 = xz^4/15

Ratling [72]

Answer:

Value of x is, 8

Step-by-step explanation:

Given: $\sqrt{\frac{896z^{15}}{225z^6}} =\frac{xz^4}{15} \sqrt{14z}$ ,.....[1]

To find the value of x:

Using exponent rules:

$(a^n)^m = a^{nm}$

$a^n \cdot a^m = a^{n+m}$

Taking square both sides in [1] we have;

$\frac{896z^{15}}{225z^6} = (\frac{xz^4}{15})^2 \cdot (14z)$

Simplify:

$\frac{896z^{15}}{225z^6} =\frac{x^2z^8}{225} \cdot (14z)$

$\frac{896z^{15}}{225z^6} =\frac{14x^2z^9}{225}$

Multiply both sides by $\frac{225}{14z^9}$ we get;

$x^2 = \frac{896 z^{15}}{225z^6} \times \frac{225}{14 z^9} = \frac{896 z^{15}}{14 z^{9+6}}$

Simplify:

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5 0

3 years ago

Simplify this, include instructions

Cerrena [4.2K]

3n+1−2n+8

Combine Like Terms:

3n+1+−2n+8
(3n+−2n)+(1+8)
=n+9

Answer is n+9

Hope I helped

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-3(x+2)=6+2x+8 how to solve for x​

-3(x+2)=6+2x+8 how to solve for x