y = -4;
(20 - x)/5
If: 20x+5y = 15 Then: y = -4x+3
5y = 3y + 12 5y - 3y = (3y - 3y) + 12 2y = 12 y = 6
-x + 5y = 10 5y= 11 y = 11/5
Can you help with this equation? Thanks. Solve for x and y and z for the following. x plus y plus z equals 9 x plus 2y plus 3z equals 23 x plus 5y plus -3z equals -7
y = -6
6y + 2 = y + 17 => 5y = 15 => y = 3
4x-5y+20 = 0 -5y = -4x-20 y = 4/5x+4 which is now in slope intercept form
The Commutative Property of Addition.
5y + 7 = 25y = -5y = -1
X = 0 (zero) Y = -1 (neg 1)
7y + 4 = 5y - 6Subtract 4 from each side:7y = 5y - 10Subtract 5y from each side:2y = -10Divide each side by 2:y = -5
One linear equation in two variables (x and y) cannot be solved.
To solve for two unknown variables (x and y) you require two independent equations,
It is not possible to solve a single linear equation in two variables.
6x plus 3y minus 2x plus 5y equals 4x plus 8y.
Divide 3.25 by 5 and get .65