HELP WITH THIS MATH PROBLEM?

Question

i need help on thses two cuz i suck at fractions

5/8+3/4x=1/16

and

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

plzzzzzzzz help

Answer 1

For the first one, make the 5/8 have a denominator of 16, therefore it becomes 10/16.

10/16 + 3/4x = 1/16

subtracting it from 1/16,

3/4x = -9/16

crossmultiplying gives

3 * 16 = -9 * 4x

48 = -36x

x = -0.75

The second one is similar:

Make the x terms have the same denominator, let's say 35.

14/35x + 20/35x = 1- 3/7

34/35x = 4/7

crossmultiplying again

34 * 7 = 4 * 35x

238 = 140x

x = 1.7

Answer 2

(5/8+3/4x=1/16)*16

5*16/8+3*16/4x=1

5*2+3*4/x=1

10+12/x=1

(10+12/x=1)*x

10x+12x/x = x

10x+12=x

12=-9x

x=-12/9

second one is the same way.

Answer 3

Here is the first - you try the second

first set to a common denominator

5/8 to get to /16 you need to multiple each number by 2

3/4 to get to /16 you need to multiple each number by 4

10/16 + 12/16x= 1/16

subtract 10/16 from each side

12/16 x= -9/16

divide each side by 12/16  

x= -9/16 * 12/9 (to divide, flip the fraction and then multiply numerator and demoninator)

x = -108/144

reduce to get -3/4

Check answer

5/8+(-3/4*3/4)=1/16

5/8+ -9/16) = 1/16

10/16 + -9/16 = 1/16

Answer 4

1. Multiply by 16.

10+12x = 1

Now, transpose and operate.

12x = -9

Then, divide by 12.

x = -3/4

2. Isolate the variables and the constants.

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

34/35x = 4/7

Multiply by 35.

34x = 20

x = 10/17