1. Systems of linear equations Many engineering problems result in
1. Substitution
1. State the slope and yintercept of: 3x – 5y = 20 2. State the x and
1. Solve: x2 + 9x = 1 2. Solve: 5x(x - 1) – 7 = 4x(x - 2
1. Solve using substitution. x - y = 1 4x + 3y = 18 2
1. Solve the given equation. 3 x - 9 + 2 x + 9 = 5 x2 - 81 (a) 5 4 (b)
1. Solve the following inequality. 24 < -2(x – 3) < 36 A. -16 < x <
1. Solve the following equation. 5 + 4(t − 2) = 2(t +7)+1 2
1. Solve the following equation. 5 + 4(t − 2) = 2(t +7)+1
1. Solve the following differential equations. If an explicit solution
1. Solve the equation by using the property of square root: a. x2 = 1
1. Solve the equation by Factoring: a. 3x2 + x = 0 b. x2 + 3x
1. Solve problems within grouping symbols. 2. Multiply or divide from
1. Solve each diamond problem. 2. Write the expression and simplify
1. slope: 3 2. slope: 0 3. slope: y-intercept: y-intercept: y
1. Simplify expressions containing zero and integer exponents
1. Simplify 2. Simplify 3. Multiply 4. Simplify 5. Simplify 6. Multiply 7
1. Simplify 1
1. Show that, for all positive real numbers p, q, r, s, 1 1 1 1 81
1. Rings and Fields
