3a-(2a-7)=13

Simple and best practice solution for 3a-(2a-7)=13 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 3a-(2a-7)=13 equation:


Simplifying
3a + -1(2a + -7) = 13

Reorder the terms:
3a + -1(-7 + 2a) = 13
3a + (-7 * -1 + 2a * -1) = 13
3a + (7 + -2a) = 13

Reorder the terms:
7 + 3a + -2a = 13

Combine like terms: 3a + -2a = 1a
7 + 1a = 13

Solving
7 + 1a = 13

Solving for variable 'a'.

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

Add '-7' to each side of the equation.
7 + -7 + 1a = 13 + -7

Combine like terms: 7 + -7 = 0
0 + 1a = 13 + -7
1a = 13 + -7

Combine like terms: 13 + -7 = 6
1a = 6

Divide each side by '1'.
a = 6

Simplifying
a = 6

See similar equations:

| 9x=216 | | -8x-6y=-4 | | (n/9)=-8 | | 36x^2-36y^2=0 | | 3-(7x)=39 | | 0.6-0.2x=1.8 | | -20+8n=-48+-40n | | x^2+8x-y+2=0 | | 6c-(5+c)=5 | | -2(X^3-3x^2+9x-10)=0 | | 2x-x+3= | | -4(5-2n)=8(-6-5n) | | X^3-3x^2+9x-10=0 | | 3x-9=54 | | 2^400/2^396-2^3 | | 6/3/12-10 | | =-65 | | 2^400/2^396-2 | | 2/3(x-12)=8 | | A=48in^2 | | 1898=c-6551 | | 120=16t^2+96t+12 | | 4x^2+19.25=0 | | 3x-b/5 | | (3+6i)(7+11i)= | | 3092=x*6551 | | 1/2=x/9 | | (x-1)*(2x+5)=(2x+3)*(x-4) | | -7a+5+8a=11-22 | | (x-1)(2x+5)=(2x+3)(x-4) | | X^3+7x-3x-105=0 | | .04(12)+.01x=.02(12+x) |

Equations solver categories