1)3a+2b-c+a-b-2c = 4a+b-3c
2)2x+y-c+x+2y-2c = 3x+3y-3c
3)3m-2n²+p³-2m-n²+p³ = m-3n²+2p³
4)0.1x³+0.3x³+x-0.4x³-0.1x³-x = -0.1x³
1)3a+2b-c+a-b-2c = 4a+b-3c
2)2x+y-c+x+2y-2c = 3x+3y-3c
3)3m-2n²+p³-2m-n²+p³ = m-3n²+2p³
4)0.1x³+0.3x³+x-0.4x³-0.1x³-x = -0.1x³