2 years ago

2(3x - 7) + 4(3x + 2) = 6(5x +9) + 3 x = -21 x = -2 x = -21/4 x = -4

Mathematics

2 answers:

BaLLatris [955]2 years ago

7 0

Answer:

x = -21/4

Step-by-step explanation:

Ray Of Light [21]2 years ago

4 0

Answer:

x = -21/4

Step-by-step explanation:

Decimal form: -5.25

Mixed Number Form: -5 1/4

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(-8)+(-12)+(-5)+(-9)

Sav [38]

Answer:

(-8)+(-12)+(-5)+(-9)

=-8-12-5-9

=-(8+12+5+9)

=-34

Step-by-step explanation:

-×-=+

+×+=+

-×+=-

3 0

3 years ago

(2 fiths) to the -2nd power btw, how can i use the camra in this app

Illusion [34]

$\bf ~~~~~~~~~~~~\textit{negative exponents}
\\\\
a^{-n} \implies \cfrac{1}{a^n}
\qquad \qquad
\cfrac{1}{a^n}\implies a^{-n}
\qquad \qquad a^n\implies \cfrac{1}{a^{-n}}
\\\\[-0.35em]
\rule{34em}{0.25pt}\\\\
\left( \cfrac{2}{5} \right)^{-2}\implies \left( \cfrac{5}{2} \right)^{+2}\implies \left( \cfrac{5^2}{2^2} \right)\implies \cfrac{25}{4}\implies 6\frac{1}{4}$