If x=6 and y=8, then [ 5x + 8y ] = 5(6) + 8(8) = 30 + 64 = 94
It is (-1, 3).
y = 3x 3x + 4y = 30 3x + 4(3x) = 30 3x + 12x = 30 15x = 30 x = 2 y = 3x y = 3(2) y = 6 (2, 6)
y=x+1 there for answer is 2
3x + 2 = 82
(y-30)/5=x
y = 28 + ¾x y = 30 + ½x → 28 + ¾x = 30 + ½x → ¾x - ½x = 30 - 28 → ¼x = 2 → x = 2 × 4 = 8 → y = 30 + ½ × 8 = 30 + 4 = 34 → solution is the point (8, 34) (ie x = 8, y = 34)
4x + 2(3x) = 30 10x = 30 x= 3. Y= 9. (3,9)
x = 14
x-int. is -5 y-int. is 6
x = y = 0 ?
30 - 12 = 18
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
(1, 9)
y equals x plus 5 is the equation of a straight line in the x-y plane.
x = 6 and y = -2
y equals x plus 4 when y equals 0 then x equals 2i i is the square root of negative 1