(x-1)2=7(x+1)

Simple and best practice solution for (x-1)2=7(x+1) 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 (x-1)2=7(x+1) equation:


Simplifying
(x + -1) * 2 = 7(x + 1)

Reorder the terms:
(-1 + x) * 2 = 7(x + 1)

Reorder the terms for easier multiplication:
2(-1 + x) = 7(x + 1)
(-1 * 2 + x * 2) = 7(x + 1)
(-2 + 2x) = 7(x + 1)

Reorder the terms:
-2 + 2x = 7(1 + x)
-2 + 2x = (1 * 7 + x * 7)
-2 + 2x = (7 + 7x)

Solving
-2 + 2x = 7 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
-2 + 2x + -7x = 7 + 7x + -7x

Combine like terms: 2x + -7x = -5x
-2 + -5x = 7 + 7x + -7x

Combine like terms: 7x + -7x = 0
-2 + -5x = 7 + 0
-2 + -5x = 7

Add '2' to each side of the equation.
-2 + 2 + -5x = 7 + 2

Combine like terms: -2 + 2 = 0
0 + -5x = 7 + 2
-5x = 7 + 2

Combine like terms: 7 + 2 = 9
-5x = 9

Divide each side by '-5'.
x = -1.8

Simplifying
x = -1.8

See similar equations:

| 35/y=105/18 | | 8*ln(x)-9*ln(3x)=2*ln(6) | | 9(-2)+6(-8)=x | | 12-3(-2)= | | 4/18-15/3 | | 11.5/5=50.6/y | | 5(x+3)=40+160 | | ln(x-8)-ln(x+9)=ln(x-7) | | 40x^4a^2+16x^2a^3=8x^2a^2 | | -2(5s-5)-10=-2(9s+8)-2 | | 3(x+3)+8x=-13 | | 3(8x-2)=4(5x+6) | | 5*cos(x)-5*sin(x)=0 | | 25v=650 | | 2x+x+(x-3)=25 | | 5cosx-5sinx=0 | | 3(12x+4)=36x-10 | | 7=2x+21 | | -3(3p+5)-2(6-14p)=3(7+6p) | | 10/4=n/4 | | 3(9x+4)=27x-5 | | 7-2(x-3)=7-5(4+x)+5 | | (8x-40)/64 | | -6x+7x-5=20 | | 75.6/7.2 | | 2000-3x=4039 | | z^2-4i=o | | -6+8x=2 | | 7=-3x-14 | | n-2.7=13.4 | | 4x^2+9y^2+24x-36y=0 | | w-13=77 |

Equations solver categories