Equations+-+Step4+-+Solving

=Solving Equations= What is a like term. Collecting like terms 1. 2a + 3a 2. 5a - 2a 3. 2a + 2b + 4a - b

Collect like terms in an equation 1. 3x + 2x = 20 + 5 2. 4x - 3x = 15

Maintaining Equivalence by doing same thing to both sides. 4x = 16 (Divide by 4) 3x + 2 = 11 2x = 9 - x (Collect like terms)

Highlight importance of choosing sensible order of transformation Workthrough 6x + 2 = 2x + 18 a) collect like terms first b) divide through before collecting terms

Collect algabraic terms on one side and numbers on the other.

Example : 2x + 50 = 100 u do it? Formal Method Collect like terms on one side (illustrate with balance scales) 2x + 50 = 100 (-50) 2x = 50 (÷2) x = 25