Answer:
![w=(1)/(5)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/gfobmoa5qeu55cc0gguck1mqmb1yz74qu8.png)
Explanation:
To know the value of the variable w that makes the equation true we must solve the equation
We have the following equation:
![-12w+12=-7w+11](https://img.qammunity.org/2020/formulas/mathematics/middle-school/7x5ajy1tiskh9oy78cdbrzsw5dsq84a69m.png)
Add 12w on both sides of the equation
![-12w+12 +12w=-7w+12w+11](https://img.qammunity.org/2020/formulas/mathematics/middle-school/ersqryhgmnjhxb02evkcpno7a5h9j3niwk.png)
![12=5w+11](https://img.qammunity.org/2020/formulas/mathematics/middle-school/6mqvzkg3v5l2t4xciebqj3ahkrn1sc98y6.png)
Now subtract 11 on both sides of the equation
![12-11=5w+11-11](https://img.qammunity.org/2020/formulas/mathematics/middle-school/kf2rwcfyit4tfi57i6ez9ip9ac9h85ga17.png)
![1=5w](https://img.qammunity.org/2020/formulas/mathematics/middle-school/hpjpy8sel7j4z38ntzaeo3hoxzuu2dkj4c.png)
![5w=1](https://img.qammunity.org/2020/formulas/mathematics/middle-school/ltv1xr7s7vtt7o6abtwnqw4jev86uldo4v.png)
Divide by 5 on both sides of the equation
![(5)/(5)w=(1)/(5)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/1ew61vflco0jl8u1b5z5deargrbanuon1a.png)
![w=(1)/(5)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/gfobmoa5qeu55cc0gguck1mqmb1yz74qu8.png)
The value of w that makes the equation true is:
![w=(1)/(5)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/gfobmoa5qeu55cc0gguck1mqmb1yz74qu8.png)