4x -17 equals 3 4x equals 20 x equals 5
4x - 3 = 5 4x = 5 + 3 4x = 8 x = 8/4 x = 2
4x-5=7 4x=12 x=3
5+4x-7 = 4x+3-x 4x-2 = 3x+3 4x-3x = 3+2 x = 5
You need two independent equations to solve for two unknowns or variables (x and y).
4x -17 equals 3 4x equals 20 x equals 5
4x - 3 = 5 4x = 5 + 3 4x = 8 x = 8/4 x = 2
Do you mean: 4x+7y = 47 and 5x-4y = -5 Then the solutions to the simultaneous equations are: x = 3 and y = 5
4x-5=7 4x=12 x=3
4x² - 12x + 9 = 5 → 4x² - 12x + 4 = 0 → x² - 3x + 1 = 0 → x = (-(-3) ±√((-3)² - 4×1×1))/(2×1) → x = (3 ±√5)/2 → x = (3 + √5)/2 or x = (3 - √5)/2
5+4x-7 = 4x+3-x 4x-2 = 3x+3 4x-3x = 3+2 x = 5
You need two independent equations to solve for two unknowns or variables (x and y).
The equation 4x + 5 = 2 has the solution 4x = -3 and x = - 3/4 (minus 3/4).
4x - 3 = 17 4x = 17 + 3 4x = 20 x = 20 / 4 x = 5
The algebraic formula [-4x - 3 = 17]is equal to -4x = 204x = -20x = -5
This has a number of solutions.... 1) x=2, y=1 2) x=3, y=3 3) x=4, y=5 etc...
The discriminant is 36 which means the quadratic equation has two solutions which are 5 and -1