7(q-3)=21

Simple and best practice solution for 7(q-3)=21 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 7(q-3)=21 equation: 


Simplifying
7(q + -3) = 21

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

Solving
-21 + 7q = 21

Solving for variable 'q'.

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

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

Combine like terms: -21 + 21 = 0
0 + 7q = 21 + 21
7q = 21 + 21

Combine like terms: 21 + 21 = 42
7q = 42

Divide each side by '7'.
q = 6

Simplifying
q = 6

See similar equations:

| 15r+45=30r-60 | | -5+10(i+4)=-15 | | x^4+3x^3-6x^2-14x+12=0 | | 15r+15=30r-60 | | 3+r+3=8 | | 3(3g-2)=12 | | 5(f-3)+8=-42 | | (x+4)(x+4)=(x-2)(x-4) | | 2(e+5)=-6 | | 6x+1=-6x+13 | | 6A+9=18 | | 9=-4r+6r-5 | | N^2+5n+4=4 | | 4x-x=27 | | 2(2x+z^2)= | | 9x^2+54x=18 | | 6n-3(n+6)=9 | | 2(4*5z)-(4+5+z)= | | 0.5(x-6)+1=2(x-10)-3 | | 15=-3(2v-1) | | t-3=2 | | 2(4*5*65)-(4+5+65)= | | 9(x+4)=1+2x | | (2x+3y)(x-2y)= | | -2(d-3)=9 | | 15x^2+x-6=0 | | 2(xyz)-(x+y+z)= | | (3+5i)+(2-7i)=0 | | -18-w+10w=27 | | (8x-4)(8x+4)= | | 15x^2+18x+11=0 | | 9y=-3x+12 |

Equations solver categories