( -— 6 ) + ( -— 5 ) + (
7 7 -4)
1 —+ (- 1 — ) + ( - 10 —)
4 2 9
(- 0.8) ÷—÷ 1 (- 400)
3
( -— 1 ) ÷ ( -—+— 1 1 ) × 0
5 9
5 12÷[(-1) 2×(-4)] 2- (-17) +2-(-15) (-1) 3+33 (-1) 2000
26÷[(-1) 2-(-3]
1 4 9 (—+ —) -(- —) 8 3 8 22-(-26) +1-(-15) 1 1 (—+ —) ×(-10) 8 3 (-3) 3-33 (-1) 1599 (-7)+(-5) 18+(-6) -13.5+(-15) 1 1 (-—) ÷(-—) 6 2 -6-[2-(-10-9)] (-2)2+22 9-10+(-19)+(-18) -5.9+(-5.7)+(-0.6)-4.1
2 1 1 4 (—-—) -(—+—) 7 2 6 7 7 2 5.1-(-—) -(-5.3) +— 5 5 -(2a-5)
x +7(8+8a)
9m +4(8b+8t) -(4m+b) -5(9a+4a) 1 —(2+2x) +t 7 -7(4c-2xy +5)
1 1 -—(y+z) +—(p+q)
2 9
4(8a-y) +5(m-5q)
8a -(4a-6) a -(5a-7d) +(6d+a)
6(2m - 4) + 9m
9(ab + 5a) +(6a + 2b)
3(xy + 2z) -( -xy - 9z)
5 — x -—=— x 1
6 2 9 6-(3n-4) -(3n+6) 4(abc+3a) -7(7a-7abc) -8(pq-pr) +(9pq+pr) 0.9x +0.4=5.3+9.2x
8 —- 4x = 4 +— 1 x 5 8 1 — (3x + 5) =— 4 x -9 9 5 y ——=+3 7 -—— y -3 2 6 1 — (3 - 2x) =— 2 (4x - 3) 8 7 3(x +7) +9(x+5) =19 5x -7(10+x) =-7 4.5x + 5(x+5) =50 4(9x+2) =8
( -— 6 ) + ( -— 5 ) + (
7 7 -4)
1 —+ (- 1 — ) + ( - 10 —)
4 2 9
(- 0.8) ÷—÷ 1 (- 400)
3
( -— 1 ) ÷ ( -—+— 1 1 ) × 0
5 9
5 12÷[(-1) 2×(-4)] 2- (-17) +2-(-15) (-1) 3+33 (-1) 2000
26÷[(-1) 2-(-3]
1 4 9 (—+ —) -(- —) 8 3 8 22-(-26) +1-(-15) 1 1 (—+ —) ×(-10) 8 3 (-3) 3-33 (-1) 1599 (-7)+(-5) 18+(-6) -13.5+(-15) 1 1 (-—) ÷(-—) 6 2 -6-[2-(-10-9)] (-2)2+22 9-10+(-19)+(-18) -5.9+(-5.7)+(-0.6)-4.1
2 1 1 4 (—-—) -(—+—) 7 2 6 7 7 2 5.1-(-—) -(-5.3) +— 5 5 -(2a-5)
x +7(8+8a)
9m +4(8b+8t) -(4m+b) -5(9a+4a) 1 —(2+2x) +t 7 -7(4c-2xy +5)
1 1 -—(y+z) +—(p+q)
2 9
4(8a-y) +5(m-5q)
8a -(4a-6) a -(5a-7d) +(6d+a)
6(2m - 4) + 9m
9(ab + 5a) +(6a + 2b)
3(xy + 2z) -( -xy - 9z)
5 — x -—=— x 1
6 2 9 6-(3n-4) -(3n+6) 4(abc+3a) -7(7a-7abc) -8(pq-pr) +(9pq+pr) 0.9x +0.4=5.3+9.2x
8 —- 4x = 4 +— 1 x 5 8 1 — (3x + 5) =— 4 x -9 9 5 y ——=+3 7 -—— y -3 2 6 1 — (3 - 2x) =— 2 (4x - 3) 8 7 3(x +7) +9(x+5) =19 5x -7(10+x) =-7 4.5x + 5(x+5) =50 4(9x+2) =8