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Irina-Kira [14]
3 years ago
11

Solve for q - 3/4q = 12 q = ___

Mathematics
2 answers:
Alex Ar [27]3 years ago
3 0
\text{We know: } \\  \boxed{\frac{\ -3\ }{\ 4\ }*q=12 } \\ \\  q=12: \frac{\ -3\ }{\ 4\ } \\ \\ q=12* \frac{\ 4\ }{\ -3\ } \\ \\ q= \frac{\ 48\ }  {\ -3\ }  \\ \\ q=-16 \\ ********** \\ \\ \text{Check:}\\  \\ \boxed{ \frac{-3}{4}*-16=12 } \\ \\  \frac{48}{4} =12 \ TRUE
vfiekz [6]3 years ago
3 0
\frac{-3}{4q}=12
Multiply by q to eliminate var in denominator 
\frac{ \not q*(3)}{4 \not q} =q*12
q= \frac{-3}{4} =q*12
Common denominator is 4
\frac{ \not 4(-3)}{ \not 4} =4q*12
-3=4q*12
-3=48q
Divide  by 48
q=\frac{ \not 3}{ \not 4 \not 8}
q=-16
The answer is: q=-16 
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