Question

9a+4b=30 if a= 1/2 find b
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Answer 1

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Answer 2

$\bold\huge\{\underline{\blue{ANSWER}}}$

$\bigstar\bold\sf{\red{GIVEN}}\bigstar$

• $9a+4b=30$

• if a=$=\frac{1}{2}$

$\bigstar\huge\bold\sf\pink{TO\:FIND}$

• The value pf b.

$\bigstar\huge\bold\sf\pink{HOW\:TO\:SOLVE}$

• We have to put the value of a in given equation then do the rest of the things.

Now,

$\implies\textbf{9×\frac{1}{2}+4b=30}$

$\implies\textbf{\frac{9}{2}+4b=30}$

$\implies\textbf{\dfrac{2(9+4b)}{2}=30}$

f

$\implies\textbf{18+8b=30}$

$\implies\textbf{8b=12}$

$\implies\textbf{b=\frac{12}{8}}$

$\implies\textbf{b=\frac{6}{4}}$