If `5x - 8 = 3x + 22`, then find the value of x

If 5x-2y = 17 and 3x +y =8 , then find the values of x and y .

If x=-3/8 then find the value of 5-(-x)

If 7:x=175:22.5, then find the value of x

(i) x+2y=-7 and 3x-2y=-1, then find the value of x. (ii) If x+y=8 and 4y-x=2, then find the value of y. (iii) If 3x+5y=9 and 5x+3y=7, then find the value of x+y. (iv) If 3x-y=11 and x-3y=17, then find the value of x-y.

X :8::2:5 find the value of x

If x = -frac(3)(8) then find the value of 2x +5, x + frac(3)(8) , 5 - (-x).

If x^(2) + x + 1 is a factor of the polynomial 3x^(3) + 8x^(2) + 8x + a, then find the value of a.

If x=5 and y=-2 , then find the value of (i) (8x-2y+5)/(2x+4ty+12) " "(ii) (5x-6y-7)/(3x+6y+12)

Solve 5x-8 = 3x +22