Answers by johnperkins - Math Homework Answers

how to solve 5x-12y+7z=0 3x-7y+4z=9 using substitution or elimination

answered Aug 18, 2014 in Calculus Answers | 1.1k views

how do I do step by step process for x-y=11, and 2x+y=19

answered Aug 18, 2014 in Algebra 1 Answers | 1.5k views

by the process of elimination how do u solve 3+2x-y=0 -3-7y=10x

answered Aug 18, 2014 in Algebra 2 Answers | 735 views

how do u solve 9x+3y=2 and -9x-y=0 by using elimintion?

answered Aug 18, 2014 in Algebra 1 Answers | 707 views

9x + 3y =6 solve for y

answered Aug 18, 2014 in Algebra 1 Answers | 754 views

Bernard has R6.00 less than Andy but R2.75 more than Colin. How much more does Andy have than Colin?

answered Aug 18, 2014 in Word Problem Answers | 775 views

what is the product of x and 5 is less than 75

answered Aug 18, 2014 in Algebra 1 Answers | 2.9k views

What is the units digit of the product 23*27*39?

answered Aug 18, 2014 in Algebra 1 Answers | 811 views

What is 75 less than the product of 39 and a number is -225 what is the number

answered Aug 18, 2014 in Pre-Algebra Answers | 975 views

what number is six less than the sum of seven and eight

answered Aug 18, 2014 in Word Problem Answers | 3.2k views

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