Need help solving these problems
1) 2(x-1)=-2
2) 2x-3(2x-3)=y+29
Please help!! D:
Best answer gets the 10 points
1) 2(x-1)=-2
2) 2x-3(2x-3)=y+29
Please help!! D:
Best answer gets the 10 points
-
1): divide both side by 2
x-1=-1
add +1 to both sides
x-1+1=-1+1
x+0=0
x=0
2)
2x-6x+9=y+29 (distribution law)
-4x+9=y+29
add +4x to both sides
+4x-4x+9=y+29+4x
9=y+4x+29
add -9 to both sides
9-9=y+4x+29-9
0=y+4x+20
or
y=-4x-20
x-1=-1
add +1 to both sides
x-1+1=-1+1
x+0=0
x=0
2)
2x-6x+9=y+29 (distribution law)
-4x+9=y+29
add +4x to both sides
+4x-4x+9=y+29+4x
9=y+4x+29
add -9 to both sides
9-9=y+4x+29-9
0=y+4x+20
or
y=-4x-20