3. 5x - 4= y –2x + 2y = 8 a. The y variable is by itself. Circle the expression that is equal to the y variable. b. Substitute the circled expression for y in the second equation. c. Solve for x. d. Substitute the value for x into your original circled equation. Solve for y. e. Write your answer as an ordered pair. f. Check your Lesson 5.3 - Solving Systems by Substitution. Thanks for helping me if somebody does(:​

12x + 1 = 25 solve the following equation. then place the correct number in the box provided.

How many solutions does the nonlinear system of equations graphed bellow have?

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)