aujscamikrailewayne aujscamikrailewayne 03-09-2022 Mathematics Answered Please Perform The Operation. Add: 1.) A - 5 + 2a - 3 2.) 5t² - 6st + 8t - 3 + 7t² + 8st - 2t + 9 3t² + 2st + 5t + 5 Subtract: 1.) 10m - 2n - 1 - 5m - 2n + 2 2.) -5x³ + 3x² +6x - 3x³ + 9x² + 4x :)