Solve the following equations: (31+26):a=19 and x*9=8

Solution:

1. Equation 1:
   • We have the equation: \( (31 + 26) : a = 19 \)
   • First, sum the numbers in the parenthesis: \( 57 : a = 19 \)
   • To find 'a', we can rearrange the equation: \( a = 57 : 19 \)
   • Calculate the value of 'a': \( a = 3 \)
2. Equation 2:
   • We have the equation: \( x \cdot 9 = 8 \)
   • To find 'x', divide both sides by 9: \( x = \frac{8}{9} \)

Answer: a = 3, x = 8/9