How to solve an algebraic expression by putting values of unknown

Step-by-step explanation:

Algebraic expressions tend to have atleast one unknown variable in it. In order to solve the expression we need to assign a fixed value to that variable or isolate it if the expression is equal to another value. For example, in the following expression we have the variable x, if we give it a value of 5 we simply solve like a regular expression...

5x + 3

5(5) + 3

25 + 3

28

Therefore, if we swap the variable x for the value of 5 we would get a value of 28 in this algebraic expression.

10,000 voters

Step-by-step explanation:

male voters

let the x represent the total number of voters

for male voters

130/360 *x = 0.36x

for female voters

angle for female voters

360 - 130 = 230°

230/360 *x = 0.64x

but there were 2800 more female voters than males

this gives;

2800 + 0.36x

equating the two values of female voters

0.64x = 2800 + 0.36x

collect like terms

0.64x - 0.36x = 2800

028x = 2800

x = 10,000

Therefore, there were 10,000 voters