To solve for x, we'd have to know what this expression equals.
y=16 x= -4
-3x + 5 = 20 -3x = 15 x = -5
4m+15=8m-5 or,4m=20 or,m=5
5x+1=20 5x=20-1 5x=19 5x/5=19/5 x=19/5
(20 - x)/5
20
To solve for x, we'd have to know what this expression equals.
To solve this one, subtract 50 from 180 and you'll have your answer.
y=16 x= -4
68
-3x + 5 = 20 -3x = 15 x = -5
Better formatting is cos(2x+20)=-0.5
20 = 400
balance the equation 3x-x=20-6 3x-x=2x 20-6=14 2x=14 x=7
3x^2=-20 so x^2=-20/3 this has no real roots but the plus of minus i(square root of 20/3) is a solution if we allow complex numbers.
20 plus 20 equals 4020 plus 20 = 40