Answer: phoebe: $135
Andy: $90
Polly: $45
Explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
3x + 2x + x = 270
X = 45
3(45) + 2(45) + 45
135 + 90 + 45 = 270
$270
4.5m questions
5.8m answers