Question #c41d4

1 Answer
Nov 2, 2017

a = 15

Explanation:

Since we have the value of b and an equation to solve, we can go ahead and substitute b into the equation:

5a - 10b = 45
5a - 10(3) = 45

From here, we simplify the equation and solve:

5a - 30 = 45
5a = 75
a = 15

So the value of a is 15.