-r+2(7r-3)=-84

Simple and best practice solution for -r+2(7r-3)=-84 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 -r+2(7r-3)=-84 equation:


Simplifying
-1r + 2(7r + -3) = -84

Reorder the terms:
-1r + 2(-3 + 7r) = -84
-1r + (-3 * 2 + 7r * 2) = -84
-1r + (-6 + 14r) = -84

Reorder the terms:
-6 + -1r + 14r = -84

Combine like terms: -1r + 14r = 13r
-6 + 13r = -84

Solving
-6 + 13r = -84

Solving for variable 'r'.

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

Add '6' to each side of the equation.
-6 + 6 + 13r = -84 + 6

Combine like terms: -6 + 6 = 0
0 + 13r = -84 + 6
13r = -84 + 6

Combine like terms: -84 + 6 = -78
13r = -78

Divide each side by '13'.
r = -6

Simplifying
r = -6

See similar equations:

| c^2+5c-10=0 | | z^4-3z^2+4=0 | | 4x+9=-59 | | 9(1-2j)=45 | | .7x+.06y=.31*10 | | 1+x(1-log(x))=0 | | 4(2c-5)=44 | | 2(8-5k)=86 | | 14=.5*5(2+5) | | 7(-5-2p)=-133 | | 3(2e+12)=6 | | 1+x(1-lnx)=0 | | 12(3-c)=72 | | 9x-42=7x-22 | | 4(4n-7)=-140 | | 82y-(33x-98)= | | 7(5-v)=54 | | 4x^2-5x+c=0 | | 3x+2(4x-6)=8x+1 | | (24+14)-10=n | | 2.2r=6.6 | | 24+14-10=n | | 5x^2-19x+c=0 | | 3mn-8mnp+6m-4= | | 6x-3(6x+18)=78 | | 7w^2-13w=2 | | 11d-13=29d+11 | | 16ft=4yd | | 9-10e=5e-6 | | a(a-13)(2a+9)=0 | | 3.5x=x+50 | | 2x+3i=18-(y-3)i |

Equations solver categories