[7u-(7-9)]+8u=81u(4)

Simple and best practice solution for [7u-(7-9)]+8u=81u(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 [7u-(7-9)]+8u=81u(4) equation:


Simplifying
[7u + -1(7 + -9)] + 8u = 81u(4)

Combine like terms: 7 + -9 = -2
[7u + -1(-2)] + 8u = 81u(4)

Multiply -1 * -2
[7u + 2] + 8u = 81u(4)

Reorder the terms:
[2 + 7u] + 8u = 81u(4)

Remove brackets around [2 + 7u]
2 + 7u + 8u = 81u(4)

Combine like terms: 7u + 8u = 15u
2 + 15u = 81u(4)

Reorder the terms for easier multiplication:
2 + 15u = 81 * 4u

Multiply 81 * 4
2 + 15u = 324u

Solving
2 + 15u = 324u

Solving for variable 'u'.

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

Add '-324u' to each side of the equation.
2 + 15u + -324u = 324u + -324u

Combine like terms: 15u + -324u = -309u
2 + -309u = 324u + -324u

Combine like terms: 324u + -324u = 0
2 + -309u = 0

Add '-2' to each side of the equation.
2 + -2 + -309u = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -309u = 0 + -2
-309u = 0 + -2

Combine like terms: 0 + -2 = -2
-309u = -2

Divide each side by '-309'.
u = 0.006472491909

Simplifying
u = 0.006472491909

See similar equations:

| 8[(12-5)+1]= | | 6d+(12d+20)= | | 12/25=-24/25-x | | 8[(20-7)+1]= | | 7r-11=5+5r | | 2/5-x=3/7 | | 69o-(8o-2)=23o-(32-7) | | -45=-7(1-6n)-2(1+3n) | | 4-3x=-3x-9 | | -c=-d-x | | 6n-3=1+5n | | 5x(10-4)=70 | | 4u=5 | | a/3+18=27 | | 1.5=15-r | | 18-3=-3(2t-1) | | 9365g=4v | | 12x^2-17x-23=0 | | 27-18=a | | 12345=785g | | -0.3(2x-2)=0.7(6-x) | | r-2k=15-r | | 3z-12=3(2z-2) | | 236541789=6y | | -7(k+1)+4(1+6k)=48 | | 4a+4=3x-4 | | 5x-22+5=155 | | 3x-5y=9;x=-101 | | 3(2y)+2y=14 | | -7/8=8t | | 4(m+2)=3(m-2) | | 3(y+3)-4(y-1)=3(y+1)+2 |

Equations solver categories