Раскройте скобки и приведите подобные слагаемые: 1)x+5-2 (4-x)- x-4, 2)4(x+4)-5(2-x)-(5+4)x-3, 3)3(x+4)-3(5-x)-x-3 4) 4(x+3)-(2-x)-(1+ 4)x-2, 5) 3(x+5)-4(5-x)-(4+3)x-1, 6) 3(x+2)-4(1-x)-x-4, 7)4(x+2)-4(2-x)-(4+4)x-3, 8)5(x+3)-3(1-x)-x-3, 9) 2(x+4)-4(2-x)-(4+2)x-1, 10) 4(x+1)-(5-x)-x-3.

5(x-1)-4(x+2)=3

1) x + 5 - 2(4 - x) – x – 4 = x + 5 - 8 + 2x – x – 4 = 2x – 7; 2) 4(x + 4) - 5(2 - x) - (5 + 4)x – 3 = 4x + 16 – 10x + 5x – 9x – 3 = 13 – 10x; 3) 3(x + 4) - 3(5 - x) – x – 3 = 3x + 12 – 15 + 3x – x – 3 = 5x – 6; 4) 4(x + 3) - (2 - x) - (1 + 4)x – 2 = 4x + 12 – 2 + x – 5x – 2 = 8; 5) 3(x + 5) - 4(5 - x) - (4 + 3)x – 1 = 3x + 15 – 20 + 4x – 7x – 1 = - 6; 6) 3(x + 2) - 4(1 - x) – x – 4 = 3x + 6 – 4 + 4x – x – 4 = 6x – 2; 7) 4(x + 2) - 4(2 - x) - (4 + 4)x – 3 = 4x + 8 – 8 + 4x – 8x – 3 = - 3; 8) 5(x + 3) - 3(1 - x) – x – 3 = 5x + 15 – 3 + 3x – x – 3 = 7x + 9; 9) 2(x + 4) - 4(2 - x) - (4 + 2)x – 1 = 2x + 8 – 8 + 4x – 6x – 1 = - 1; 10) 4(x + 1) - (5 - x) – x – 3 = 4x + 4 – 5 + x – x – 3 = 4x – 4.