Answer:
![\boxed{ \bold{ \huge{\boxed{ \sf{x = 4}}}}}](https://img.qammunity.org/2021/formulas/mathematics/high-school/rzkvt573oalkq3r3g6n4c79o1k17m6lzdx.png)
Explanation:
![\sf{ - 8 - x = x - 4x}](https://img.qammunity.org/2021/formulas/mathematics/high-school/5httzh1et4533kwt2pvztynjfv6d34y50t.png)
Collect like terms
⇒
![\sf{ - 8 - x = - 3x}](https://img.qammunity.org/2021/formulas/mathematics/high-school/bih5vtz6ob3o4pbg4rfrlyyoskf76jq66b.png)
Move 3x to left hand side and change it's sign
Similarly, move 8 to right hand side and change it's sign
⇒
![\sf{ - x + 3x = 8}](https://img.qammunity.org/2021/formulas/mathematics/high-school/eqq6holt1lficchqo1xxrz6lh8i5vqy5px.png)
Collect like terms
⇒
![\sf{2x = 8}](https://img.qammunity.org/2021/formulas/mathematics/high-school/olm6duuqa2bcaycc97uq3oqiqxcs2ogwcw.png)
Divide both sides of the equation by 2
⇒
![\sf{ (2x)/(2) = (8)/(2) }](https://img.qammunity.org/2021/formulas/mathematics/high-school/mfr23p24ueida5j230pdaig59gmjvmrfkt.png)
Calculate
⇒
![\sf{x = 4}](https://img.qammunity.org/2021/formulas/mathematics/high-school/sdwb6mxcxpjdhc0ehkwvbwxtj5bqj4g5q5.png)
Hope I helped!
Best regards!!