Answer:
FG=30
Explanation:
Since we know that Point G is on the Segment FH, it doesn't really matter where G is, but we can know for certain that:
![FH=FG+GH](https://img.qammunity.org/2021/formulas/mathematics/college/r2tmibctqhu7jy6tbedzh2yeo7ubgw6ymu.png)
We are given that FH is 4x, GH is x, and FG is 2x+10. Substitute:
![4x=(2x+10)+x](https://img.qammunity.org/2021/formulas/mathematics/high-school/pqtjy86gk285gzsnjvbixigdpb9gp08v3o.png)
Solve for x. On the right, combine like terms:
![4x=3x+10](https://img.qammunity.org/2021/formulas/mathematics/high-school/slp6m0ja97gu5wfdk0qfhrphm3j64iiwgu.png)
Subtract 3x from both sides:
![x=10](https://img.qammunity.org/2021/formulas/mathematics/middle-school/yveq4wkntm80fiuxnqfce6qwd476ocdd80.png)
So, the value of x is 10.
To find the value of FG, substitute 10 into its x:
![FG=2x+10\\FG=2(10)+10](https://img.qammunity.org/2021/formulas/mathematics/high-school/66zz7es1oczu8o0ayvdwcfn1o7r84k1een.png)
Multiply:
![FG=20+10](https://img.qammunity.org/2021/formulas/mathematics/high-school/aayl1geu2ipobn3kqfsifdwncx16721ku1.png)
Add:
![FG=30](https://img.qammunity.org/2021/formulas/mathematics/high-school/slrea3zo5x79v60b1ul3mfk7b9uqnvjhjg.png)
And we're done!