Question

Solve for x. 2/5 (x - 9/10) =- 2 3/4

Answer 1

Answer:

x = -5.975

Step-by-step explanation:

distribute first by multiplying 2/5 by 'x' and then by 9/10 to get:

2/5x - 18/50 = -2 3/4

next, change -2 3/4 into an improper fraction to get:

2/5x - 18/50 = -11/4

now add 18/50 to -18/50 and to -11/4 using a common denominator of 100

2/5x = -275/100 + 36/100

2/5x = -239/100

multiply each side by 5/2 to isolate 'x':

x = -239/100 · 5/2

x = -1195/200

now simplify:

x = -5.975