MAT 265 Lecture : 62 1--10

Determine the solution set for the follwing system. Also, Answer the question, how many solutions are there?

a+b^2+c^3+d^4=246

a-b^2-c^3-d^4=-206

a-b^2+c^3-d^4=44

20a-10b^2+5c^3-d^4=24

Solve the following system of equations using the row operation tool so that all your calculations are done with fractions.

 3x + 2y + 7z = 9 2x + 4y - 4z = 7 3x + 5y - 4z = 2 

Give the value of x in your solution in reduced fractional form (such as 5/3 or -19/7). Answers given as decimals will be graded as incorrect.

http://www4.ncsu.edu/~lbpage/tools/row_ops.html

How many real solutions are there to the following equations?