Question

Question :-

4(a+8)-7(a-1)=12

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Answer 1

$\sf{4(a+8)-7(a-1)=12 }$

$\sf{4a+32-7a+7=12}$

$\sf{39+-3a=12}$

$\sf{-3a=12-39}$

$\sf{-3a=-27}$

$\sf{a={\frac{-27}{-3}}}$

$\sf{a=9}$

Answer 2

Answer:

a=9

Step-by-step explanation:

4(a+8)-7(a-1)=12

4a+32-7(a-1=12

4a+32-7a+7=12

4a+39-7a=12

-3a+39=12

-3a+39-39=12-39

-3a=-27

-3a/-3=-27/-3

a=9