Posted by leslie on Tuesday, August 14, 2012 at 11:22pm.
3 ( 5 y - 5 x ) = 45
3 * 5 * ( y - x ) = 3 * 3 * 5
15 ( y - x ) = 3 * 15 Divide both sides by 15
y - x = 3 Add x to both sides
y - x + x = 3 + x
y = x + 3
If you must solve y = 0
0 = x + 3 Subtrac 3 to both sides
0 - 3 = x + 3 - 3
- 3 = x
x = - 3
OR
3 ( 5 y - 5 x ) = 45 Divide both sides by 3
5 y - 5 x = 45 / 3 = 15
5 * 0 - 5 x = 15
- 5 x = 15 Divide both sides by - 5
x = 15 / - 5
x = - 3
Related Questions
Alegbra - I need help with this problem 0.3x-0.2y=4 0.5x+0.5y=45/23 3x-2y=40 5x+...
ALgebra - simplify: (2x^2y)(-5x^-5y^6) (5y)^3
Math - I need help with two problems. Just want to make sure that the answers I ...
algebra - can you tell me the process of how to simply problems like this so i ...
Algebra 2 - Can someone check my answers. Write the following equations in ...
algebra* - Find the following product: -9x^5y(-5x^4y^6) A)-14x^9y^7 B)45x^9y^7 C...
Precalculus check answers help! - 7.) Write the equation 3x + 4y – 7 = 0 in...
Math/115 - 0.3x - 0.2y = 4 0.5x + 0.5y = 45/23 How to eliminate?
Math - 1.Write the equation 5x+y-2=0 in normal form. 5x+y-2=0 5x+y=2 (add two to...
One to one functions - I still need help with finding the inverese of one to ...
For Further Reading
