How to add and subtract the numbers

You first want to figure out the populations for each. Tallahessee has 483,493. New York has 345,876 more than Tallahessee, so you want to add the 2 populations. 483, 493 + 325,876 =809,369. So therefore, New York has 809,369 people. Phoenix has 279,426 less than New York, so you what to subtract the two numbers. 809,369-279,426=529,943. So Phoenix has 529,943. Then, you want to add each number together, which makes 1,822,805.

arrange the equations with like terms in columns.

analyze the coefficients of x or y.

add the equations and solve for the remaining variable.

substitute the value into either equation and solve.

check the solution.

step-by-step explanation: