a) -8x + 2x + 3x = -12-8x + 2x + 3x = -12-3x = -12x = -12 / -3x = 4
b) (-7x + 1) - (2 - 8x) = 0-7x + 1 - 2 + 8x = 0x - 1 = 0x = 1
c) 4(y-1) - 0.8(y-5) = 324y - 4 - 0.8y + 4 = 323.2y = 32y = 32 / 3.2y = 10
a) -8x + 2x + 3x = -12
-8x + 2x + 3x = -12
-3x = -12
x = -12 / -3
x = 4
b) (-7x + 1) - (2 - 8x) = 0
-7x + 1 - 2 + 8x = 0
x - 1 = 0
x = 1
c) 4(y-1) - 0.8(y-5) = 32
4y - 4 - 0.8y + 4 = 32
3.2y = 32
y = 32 / 3.2
y = 10