Algebra 1 Section 2.3 Subtract real numbers

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Presentation transcript:

Algebra 1 Section 2.3 Subtract real numbers Note: 5+(-3) = 2 and 5 – 3 = 2 7 + (-4) = 3 and 7 – 4 = 3 Subtraction Rule a – b = a + (-b) -3/2 – (-1/2) -4/9 – 2/3 – 5/6 Simplify -7 – 9 8 – (-12)

Simplify 8 – (-5) + 6 – 4 + (-7) Find the terms of : 9x + 3y + 7 Terms are numbers or products of variables and numbers. In an expression, terms are separated by addition or subtraction. Find the terms of : 9x + 3y + 7 16y – 14 x + 18

Evaluate the expression Y = -8 – x when x = {-2,-1,0,1}

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assignment Page 82 Problems 16-70 even, 76,77,78,84,90