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Componendo and Dividendo

Find a if 4...

Question

Find a
if $4 a + 6 = 42$

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Solution

$4 a + 6 = 42 4 a = 42 - 6 4 a = 36 a = \frac{36}{4} a = 9$

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Similar questions

Find the value of A , if 42A8 is divisible by 4

A = ⎡ ⎢ ⎣ \begin{matrix} 0 & 1 & 2 2 & 3 & 4 4 & 5 & - 6 \end{matrix} ⎤ ⎥ ⎦

B = ⎡ ⎢ ⎣ \begin{matrix} - 1 & 2 & 3 0 & 1 & 0 0 & 0 & - 1 \end{matrix} ⎤ ⎥ ⎦,

4 A - 6 B

.

A = [\begin{matrix} 3 & 5 7 & - 9 \end{matrix}]

B = [\begin{matrix} 6 & - 4 2 & 3 \end{matrix}]

(4 A - 3 B)

2 a + 3 = 6

, then find the value of

\frac{3}{4 a + 6}

.

4 a - 3 = 13

, then find the value of

10 a^{2} - 5 a + 6

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