Answer:
1) x= -3
2) x=-4
Explanation:
The first equation is :
-3x+8=17
solving for x
-3x=17-8 ------------by collecting like terms
-3x=9
Divide both sides by -3
-3x/-3=9/-3
x= -3
In the second equation
1+4x= -15
solving for x
4x=-15-1
4x = -16
x=-16/4
x= -4