(3+y)(y+1)=(y+1)(y-1)

Simple and best practice solution for (3+y)(y+1)=(y+1)(y-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 (3+y)(y+1)=(y+1)(y-1) equation:


Simplifying
(3 + y)(y + 1) = (y + 1)(y + -1)

Reorder the terms:
(3 + y)(1 + y) = (y + 1)(y + -1)

Multiply (3 + y) * (1 + y)
(3(1 + y) + y(1 + y)) = (y + 1)(y + -1)
((1 * 3 + y * 3) + y(1 + y)) = (y + 1)(y + -1)
((3 + 3y) + y(1 + y)) = (y + 1)(y + -1)
(3 + 3y + (1 * y + y * y)) = (y + 1)(y + -1)
(3 + 3y + (1y + y2)) = (y + 1)(y + -1)

Combine like terms: 3y + 1y = 4y
(3 + 4y + y2) = (y + 1)(y + -1)

Reorder the terms:
3 + 4y + y2 = (1 + y)(y + -1)

Reorder the terms:
3 + 4y + y2 = (1 + y)(-1 + y)

Multiply (1 + y) * (-1 + y)
3 + 4y + y2 = (1(-1 + y) + y(-1 + y))
3 + 4y + y2 = ((-1 * 1 + y * 1) + y(-1 + y))
3 + 4y + y2 = ((-1 + 1y) + y(-1 + y))
3 + 4y + y2 = (-1 + 1y + (-1 * y + y * y))
3 + 4y + y2 = (-1 + 1y + (-1y + y2))

Combine like terms: 1y + -1y = 0
3 + 4y + y2 = (-1 + 0 + y2)
3 + 4y + y2 = (-1 + y2)

Add '-1y2' to each side of the equation.
3 + 4y + y2 + -1y2 = -1 + y2 + -1y2

Combine like terms: y2 + -1y2 = 0
3 + 4y + 0 = -1 + y2 + -1y2
3 + 4y = -1 + y2 + -1y2

Combine like terms: y2 + -1y2 = 0
3 + 4y = -1 + 0
3 + 4y = -1

Solving
3 + 4y = -1

Solving for variable 'y'.

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

Add '-3' to each side of the equation.
3 + -3 + 4y = -1 + -3

Combine like terms: 3 + -3 = 0
0 + 4y = -1 + -3
4y = -1 + -3

Combine like terms: -1 + -3 = -4
4y = -4

Divide each side by '4'.
y = -1

Simplifying
y = -1

See similar equations:

| 0.7(4x+3)=1.1-(x+2) | | 145=-11x-31-5x | | (20+2x)(24+2x)=416 | | 4(y-3)=6x | | 3(x+4)-7=x-3 | | 2(3y-1)+5=8y-7 | | 7(3x-4)=-217 | | -10=-2+x/10 | | -0.2(-5.85-6x)=1.5x | | (-40)(2)(3)= | | 0.7(5x+4)=1.1-(x+4) | | 145=-11x-31 | | (x-1)^1/2 | | 2x-4(0)=12 | | 2/j+3=4/5 | | -3x+3=4x+8+2 | | (k+3)/16k/(5k-3)/12k | | 45x^4=120 | | 3=4x-3+3-3x | | 4y=5x-7 | | 0.7(3x+2)=1.1-(x+2) | | -14/h=-2/5 | | 7=4 | | k+3/16k/5k-3/12k | | 7=(x+4)-x | | (y-3)/6=-15 | | 4+3m=5m | | -13/15=k/-5 | | -7-4y=16 | | 6(a+1)=5[a-(3-6)] | | 7x+6x+15=10x+17 | | -15-40=23-8x |

Equations solver categories