d/dx (3x+25)=3
10 -3x+8x = 25 -3x+8x = 25-10 5x = 15 x = 3
3X + 7 = 25 subtract 7 from each side 3X + 7 - 7 = 25 - 7 3X = 18 divide each sides integers by 3 (3/3)X = 18/3 X = 6 --------------check in original equation 3(6) + 7 = 25 18 + 7 = 25 25 = 25 -------------checks
If: 8x-4 = 3x+21 Then: 8x-3x = 21+4 => 5x = 25 => x = 25/5 Therefore: x = 5
9x2 + 30x + 25
1) 3x-17=0 3x=17 x=17/3 2) 3x-25=0 3x=25 x=25/3
d/dx (3x+25)=3
8x - 23= 3x + 2 +23 +23 8x=3x + 25 -3x -3x 5x=25 x=5 the answer is X=5
10 -3x+8x = 25 -3x+8x = 25-10 5x = 15 x = 3
If the angles are x, 3x and 3x+5, the following equation gives x x+3x+(3x+5)=180 -> x =25, and in degrees the angles are 25, 75 and 80.
If: 3x-5y = 25 Then: -5y = -3x+25 And: y = 3/5x-5 So: slope is 3/5 or 0.6 and the y intercept is -5
3x - 5 = 20 Add '5' tp bpth sides 3x = 25 Divide both sides by ;3;/ x = 25/3 = 8 1/3 = 8.333.....
You can't simplify this expression. You can calculate a value (a number) only if you happen to know how much "x" is.
3X + 7 = 25 subtract 7 from each side 3X + 7 - 7 = 25 - 7 3X = 18 divide each sides integers by 3 (3/3)X = 18/3 X = 6 --------------check in original equation 3(6) + 7 = 25 18 + 7 = 25 25 = 25 -------------checks
If: 8x-4 = 3x+21 Then: 8x-3x = 21+4 => 5x = 25 => x = 25/5 Therefore: x = 5
3x=(33+42) 3x=75 x=75/3 x=25
9x2 + 30x + 25