What does x equal? . 3/4 x + 5/8=4x

6x +5 = 8x after make the common denominator on both sides 

5 = 2x

x = 5/2 

hope this will help you 

In the given expression  3/4 x + 5/8=4x, the first step to take to extract the value of x is to transpose 4x from the right side to the left side and transpose 5/8 to the other side. Transposition means applying an operation that is opposite to the operation of the number to be transferred. Hence the operation applied should be subtraction of 5/8 and 4x. The answer is x = 26/5. 

40 & 50 in the right corner are the complementary angles as when placed in a sum (added together) they make 90°