If , then = 90. = 7 x ⊥ Divide + = Sum of parts = whole each side by 12. (9x + 5) + (3x + 1) = 90 Substitution 12x + 6 = 90 Combine like terms. 12x = 84 Subtract 6 from each side. Exercises 2. Find 1. Find the value of and so that x y 3. = 3x + 10, = and Find the value of x, . x. 4. If = 7y - 3 and = 3y + 3, find the value of so y that . 5. Find the value of and x, 6. Find the of and y,
If ⊥ , then = 90. + = Sum of parts = whole (9x + 5) + (3x + 1) = 90 Substitution 12x + 6 = 90 Combine like terms. 12x = 84 Subtract 6 from each side. x = 7 Divide each side by 12. Exercises 1. Find the value of x and y so that 2. Find 3. = 3x + 10, = x, and . Find the value of x. 4. If = 7y - 3 and = 3y + 3, find the value of y so that . 5. Find the value of x, and 6. Find the of y, and
1-5-Study_Guide_and_Intervention_Angle_Relationships.docx