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3 years ago

How do I solve this equation?

Mathematics

1 answer:

PilotLPTM [1.2K]3 years ago

5 0

Answer:

x = ± $\frac{2}{3}$

Step-by-step explanation:

$|a|= \left \{ {a,if{a\geq 0} \atop-a, if {a$

~~~~~~~~~~~~

7 | 3x | + 2 = 16

7 | 3x | = 14

| 3x | = 2

1). 3x = 2

x = $\frac{2}{3}$

2). - 3x = 2

x = - $\frac{2}{3}$

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Solve this in distributing -(5.3x-7y)-9.6

algol13

Answer:

$-\left(5.3x-7y\right)\left(-9.6\right)=\:50.88x-67.2y$

Step-by-step explanation:

Given the expression

$-\left(5.3x-7y\right)\times \left(-9.6\right)$

$=-\left(-9.6\right)\left(5.3x-7y\right)$

Apply distributive law

$a\left(b-c\right)=ab-ac$

$a=-\left(-9.6\right),\:b=5.3x,\:c=7y$

so the expression becomes

$=-\left(-9.6\right)\times \:5.3x-\left(-\left(-9.6\right)\right)\times \:7y$

$=-\left(-9.6\right)\times \:5.3x+7\left(-9.6\right)y$ ∵ $-\left(-a\right)=a$

$\mathrm{Remove\:parentheses}:\quad \left(-a\right)=-a,\:-\left(-a\right)=a$

$=9.6\times \:5.3x-7\times \:9.6y$

$=50.88x-7\times \:9.6y$

$=50.88x-67.2y$

Therefore,

$-\left(5.3x-7y\right)\left(-9.6\right)=\:50.88x-67.2y$

3 0

3 years ago

F (x) = 7x Find f^-1 (x)

Trava [24]

Answer:

f^-1 (x)=1/7x

Step-by-step explanation:

f(x) = 7x

y=7x x=7y

y=x/7

y=1/7x

f^-1 (x)=1/7x

6 0

3 years ago

Find AC if AB = 17 and BC = 9

Montano1993 [528]

Answer:

ANSWER:-

Step-by-step explanation:

AB+BC=AC

17+9

=26 is the answer.

7 0

3 years ago

Find GE<br> A) 14<br> C) 8<br> B) 6<br> D) 11

fenix001 [56]

Since FE is 2, 2+9 = 11

GE is D) 11

4 0

3 years ago

SOLVE THE CORRECT ANSWER!

UNO [17]

Step-by-step explanation:

123445+(89-23765)=99769

234.57+(5.23-2.678)=237.122

(21.54+ 80.27)-68.501=33.309

5 0

3 years ago