-20 = -4x +6
add 20 to both sides
0 = -4x +26
4x = 26
x = 26/4 = 6.5
-4x+3 = 23+6x -4x-6x = 23-3 -10x = 20 x = -2
4x-5y+20 = 0 -5y = -4x-20 y = 4/5x+4 which is now in slope intercept form
6x + 14 = 20 + 4x ------ Combine like terms (subtract 4x and 14 from both sides). 2x = 6 --------------------- Divide by 2. x = 3
7x = 20 + 4xSubtract 4x from each side of the equation:3x = 20Divide each side by 3 :x = 20/3
4x =20x=20/4x=5
5x + 20 = 4x +30 5x - 4x = 30 - 20 x = 10
2y = 4x + 4y = 2x + 2
x = 5
To solve the system of equations (4x + 8y = 20) and (-4x + 2y = -3), you can use the elimination method. First, add the two equations together to eliminate (x): [ (4x - 4x) + (8y + 2y) = 20 - 3 ] This simplifies to (10y = 17), giving (y = \frac{17}{10}). Substitute (y) back into either original equation to find (x). For example, using (4x + 8(\frac{17}{10}) = 20), you can solve for (x).
many solutions
x= -.5
-4x + 6 = 26 Subtract 6 from both sides: -4x = 20 Divide both sides by -4: x = 20/-4 Solve for x: x = -5