Monday, April 16, 2018

Beginning Algebra With Applications, Chapter 6, Review Exercises, Section Review Exercises, Problem 6

Solve by addition method: 4xy=92x+3y=13


3(4xy)=(9)3Eliminate y: Multiply each side of equation 1 by 32x+3y=1312x3y=272x+3y=1314x=14Add the equationsx=1Solve for x




2(1)+3y=13Substitute the value of x in equation 22+3y=13Solve for y3y=15y=5


The solution is (1,5).

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