Question

3x+5 upon 2x+7= 4 upon 1 What's the value of x.​

Answer 1

Answer:

$\frac{3x + 5}{2x + 7} = \frac{4}{1} \\ \\ = cross \: multiplication \\ \\ = 3x + 5 = 4(2x + 7) \\ \\ = 3x + 5 = 8x + 28 \\ \\ = 3x - 8x = 28 - 5 \\ \\ = - 5x = 23 \\ \\ = x = \frac{-23}{5}$

Answer 2

Step-by-step explanation:

3x+5/2x+7=4/1

=>1×(3x+5)=4×(2x+7)

=>3x+5=8x+28

=>3x-8x=28-5

=>-5x=23

=>x=-23/5