Question

Helpppp asapppp I’ll give you a lot of points

Answer 1

`x = \frac{5a-2} {7+5a}\\`

Explanation:

Given the expressions

`x = (5)/(9y+5)....1\\y = (5)/(5a-2) ...2`

Substitute 2 into 1

`x = (5)/(9((5)/(5a-2) )+5) \\x = (5)/(((45)/(5a-2) )+5) \\x = (5)/((45+5(5a-2))/(5a-2) ) \\x= (5)/((35+25a)/(5a-2) )\\x = \frac{5(5a-2)} {35+25a}\\x = \frac{5(5a-2)} {5(7+5a})\\\\x = \frac{5a-2} {7+5a}\\`