Question

3. Solve 3x/4 - 7/4 = 5x + 12​

Answer 1

Answer:

$x = \frac{ - 55}{17}$

Step-by-step explanation:

$\frac{3x}{4} - \frac{7}{4} = 5x + 12 \\ \frac{3x - 7}{4} = 5x + 12 \\ 3x - 7 = 4(5x + 12) \\ 3x - 7 = 20x + 48 \\ 3x - 20x = 48 + 7 \\ - 17x = 55 \\ x = \frac{ - 55}{17}$

Answer 2

$\frac{3x}{4} - \frac{7}{4} = 5x + 12 \\ \\ = > \frac{3x - 7}{4} = 5x + 12 \\ \\ = > 3x - 7 = 4(5x + 12) \\ \\ = > 3x - 7 = 20x + 48 \\ \\ = > 3x - 20x = 48 + 7 \\ \\ = > - 17x = 55 \\ \\ = > x = \frac{ - 55}{ \: \: \: 17}$

I hope this helps you.