a+a+1+a+2+a+3+a+4=90

Simple and best practice solution for a+a+1+a+2+a+3+a+4=90 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 a+a+1+a+2+a+3+a+4=90 equation:


Simplifying
a + a + 1 + a + 2 + a + 3 + a + 4 = 90

Reorder the terms:
1 + 2 + 3 + 4 + a + a + a + a + a = 90

Combine like terms: 1 + 2 = 3
3 + 3 + 4 + a + a + a + a + a = 90

Combine like terms: 3 + 3 = 6
6 + 4 + a + a + a + a + a = 90

Combine like terms: 6 + 4 = 10
10 + a + a + a + a + a = 90

Combine like terms: a + a = 2a
10 + 2a + a + a + a = 90

Combine like terms: 2a + a = 3a
10 + 3a + a + a = 90

Combine like terms: 3a + a = 4a
10 + 4a + a = 90

Combine like terms: 4a + a = 5a
10 + 5a = 90

Solving
10 + 5a = 90

Solving for variable 'a'.

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

Add '-10' to each side of the equation.
10 + -10 + 5a = 90 + -10

Combine like terms: 10 + -10 = 0
0 + 5a = 90 + -10
5a = 90 + -10

Combine like terms: 90 + -10 = 80
5a = 80

Divide each side by '5'.
a = 16

Simplifying
a = 16

See similar equations:

| -4x-11x=105 | | t^2-8=-7t | | 8(4x-2)=144 | | 4a+b+5a+10b= | | -5x+4=-1 | | -8x+2.3=8x-12.1 | | -5(n+5)=-7(n-1) | | 39+6v=-(v+3) | | a^2x+(a-1)=(a+1)x | | 4x+3.5=-3x+1.4 | | 7+5k=-3 | | 2x-5y=-10 | | 16x^3-144x=0 | | -2(3b-2)-3b=-b-28 | | -0.5(12b-8)= | | 4x+2.5=2x+1.7 | | 7=-3c-3 | | -5(1+6m)=115 | | 12(2k+11)=(2k+12) | | 3x^2-4x=12-x^3 | | .5x+15=x | | -106=-8n+5(-3-n) | | 80=-16t^2+80t | | 90-2P=35+2P | | 3(1+6x)+2(10x+12)=10x+x | | 3(2N+4)-2(3N+6)= | | 7b-4.6=-3b+9.8 | | 5j-7=-6j-29 | | 791.50=564+65x | | g^3+-g-3=0 | | -6x+19=14-6x | | -12+8n=-7(-4n-4) |

Equations solver categories