1) 3(2x+1)+5(1+3x) = 6x+3+5+15x = 21x + 82) 10(n+m)-4(2m+7n) = 10n+10m-8m-28n = -18n+2m3) 4(2+x)-3(1+x) = 8+4x-3-3x = x+54) 11(5c+d)+3(d+c) = 55c+11d+3d+3c = 58c+14d
1) 3(2x+1)+5(1+3x) = 6x+3+5+15x = 21x + 8
2) 10(n+m)-4(2m+7n) = 10n+10m-8m-28n = -18n+2m
3) 4(2+x)-3(1+x) = 8+4x-3-3x = x+5
4) 11(5c+d)+3(d+c) = 55c+11d+3d+3c = 58c+14d