D+3.9=7.4

Simple and best practice solution for D+3.9=7.4 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for D+3.9=7.4 equation: 


Simplifying
D + 3.9 = 7.4

Reorder the terms:
3.9 + D = 7.4

Solving
3.9 + D = 7.4

Solving for variable 'D'.

Move all terms containing D to the left, all other terms to the right.

Add '-3.9' to each side of the equation.
3.9 + -3.9 + D = 7.4 + -3.9

Combine like terms: 3.9 + -3.9 = 0.0
0.0 + D = 7.4 + -3.9
D = 7.4 + -3.9

Combine like terms: 7.4 + -3.9 = 3.5
D = 3.5

Simplifying
D = 3.5

See similar equations:

| 6k+15-1= | | 8x^3-36x^2+53x-25=cbrt(3x-5) | | 12x+5=7x | | 11k-14k=24 | | 3x+5/3=5/2 | | -12=3(x+12) | | -3=5+2w | | 16k+4-8k+8= | | Y=-4.9x^2+34.3x | | 3A+B-2A-B= | | -35+(-29)= | | (3x-8)(5x+9)=0 | | 4+x=90 | | 43+(-45)= | | (1/x)-(3/(x+3)) | | (4x-10)= | | x-2*x+7=0 | | 1/5(10x-8)=3 | | (1/x)+(3/(x+3)) | | z-8z=9z-4-z | | x/2-x/3=7 | | 58+(39)= | | -5a+21+7a=3a-8a | | -36+(-53)= | | 105a^2-33a-18= | | 3(6a-7)=-111 | | -4y+6=8+3y | | log(x)=2.3 | | 4(-3m-4)=-112 | | -7x+2=-96 | | log(x+2)-log(x)=1 | | 30-.5n=10 |

Equations solver categories