Adding Subtracting Expressions Adding Expressions Subtracting Expressions 5

Adding & Subtracting Expressions Adding Expressions Subtracting Expressions (5 x + 3) + (2 x + 7) (− 4 x – 1) + (6 x – 8) (5 x + 3) − (2 x + 7) (− 4 x – 1) − (6 x – 8) Set problem up vertically, lining up like terms. 5 x + 3 + 2 x +7 − 4 x – 1 + 6 x – 8 Isolate each column individually, adding the terms, following rules for signed numbers. 5 x + 3 + 2 x +7 7 x +10 − 4 x + 6 x 2 x – 1 – 8 − 9 Put the terms together into one expression. 7 x + 10 2 x – 9 5 x + 3 − 2 x +7 − 4 x – 1 − 6 x – 8 Isolate each column individually, subtracting the terms, following rules for signed numbers. 5 x + 3 − 2 x +7 3 x − 4 x − 6 x − 10 x – 1 – 8 +7 Put the terms together into one expression. 3 x − 4 − 10 x + 7

Adding & Subtracting Expressions Adding Expressions Subtracting Expressions