Answer:
3) x = 21.33
4) x = 33
5) x = 11
Step-by-step explanation:
3: (3x + 17) + (x + 40) + (2x - 5) = 180
6x + 52 = 180
6x = 128
x = 21.333...
4: 180 / 3 = 60
3x - 39 = 60
3x = 99
x = 33
5: 90 + (6x + 7) + (2x - 5) = 180
8x + 2 = 90
8x = 88
x = 11
583.333333333
or
583.3
x=-1
1.) 2-3(2x-1)=-6x+5
2.) -1(-2x-1)=-6+5
3.) (2x+1)=-6+5
4.) (2x+1)=-1
5.) 2x=-2
6.) x=-1
y=-1/4x+2
