3u-7=7(u+3)

Simple and best practice solution for 3u-7=7(u+3) 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 3u-7=7(u+3) equation:


Simplifying
3u + -7 = 7(u + 3)

Reorder the terms:
-7 + 3u = 7(u + 3)

Reorder the terms:
-7 + 3u = 7(3 + u)
-7 + 3u = (3 * 7 + u * 7)
-7 + 3u = (21 + 7u)

Solving
-7 + 3u = 21 + 7u

Solving for variable 'u'.

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

Add '-7u' to each side of the equation.
-7 + 3u + -7u = 21 + 7u + -7u

Combine like terms: 3u + -7u = -4u
-7 + -4u = 21 + 7u + -7u

Combine like terms: 7u + -7u = 0
-7 + -4u = 21 + 0
-7 + -4u = 21

Add '7' to each side of the equation.
-7 + 7 + -4u = 21 + 7

Combine like terms: -7 + 7 = 0
0 + -4u = 21 + 7
-4u = 21 + 7

Combine like terms: 21 + 7 = 28
-4u = 28

Divide each side by '-4'.
u = -7

Simplifying
u = -7

See similar equations:

| -240=-6(-8-8x) | | 3+2j=18 | | -9x^2-5=0 | | 0.33(x+5)=0.1x | | 3x(16)=12(4) | | 32.2=4.6c | | 196=4(1-8n) | | 9=11-2 | | 2m-8=8m+4 | | (5v+1)(2-v)=0 | | 2n(7)=14(9) | | -4x+6+2x+(-3)= | | 5+4x=-7+x | | 2/7x-1/7=3/14 | | -3n^2+8n-4=0 | | 47x+111+44x+(33x+1)=360 | | 8-6=13-2 | | 2(m-4)=4(2m+1) | | 63.6=5.3a | | g(x)=x^4-8x^2+16 | | 2(x+10)+4=12 | | 14d+(-9d)= | | 13y=-18x-60 | | 40+80+60= | | -10g^2+32g=6 | | 127+(2x-41)=180 | | 3x+5(x+4)=500 | | 14=17-3 | | x+34=157 | | -4(4x-8)=-8(9-11x) | | 35+-7x=42 | | 3-2x=7+6x |

Equations solver categories