Լրացուցիչ աշխատանք (Հանրահաշիվ)

ա)5a — (a + 1) = 5a — a — 1 = 4a — 1

բ)x — (6x — 5) = x — 6x + 5 = -5 + 5

գ)2a — (7a + 5) = 2a — 7a — 5 = -5a — 5

դ)7 — 4x + (2x -1) = 7 — 4x + 2x — 1 = 6 — 2x

ե) a + (a + 1) = a + a + 1 = 2a + 1

զ)(x — 1) + 6 = x — 1 + 6 = x + 5

է)a + b + (a — b) = a + b + a — b = 2a + 0

ը)(x — y) + (x — y) = x — y + x — y = 2x — 2y

ա)7a + (2a + 3b) =7a + 2a + 3b = 9a + 3b

բ) 9x + (2y — 5x) = 9x + 2y — 5x = 4x + 2y

գ)(5x + 7a) + 4a = 5x + 7a + 4a = 5x + 11a

դ)(5x — 7a) + 5a = 5x — 7a + 5a = 5x — 2a

ե) (3x — 6y) — 4x = 3x — 6y — 4x = -1 — 6y

զ) (2a + 5b) — 7b = 2a + 5b — 7b = 2a -2

է) 3m — (5n + 2m) = 3m — 5n — 2m = m — 5n

ը) 6p — (5p — 3a) = 6p — 5p + 3a = p + 3a

ա) 3a + (a + 2b) = 3a + a + 2b = 4a + 2b

բ) 7x + (2 — 3x) = 2x + 2 — 3x = 4 + 2

գ)(3 — 2a) + (-5a — 7) =3 — 2a + — 5a — 7 = -4 — 7a

դ) (3x — y) + (-2x + 4y) = 3x — y + -2x + 4y = x + 3

ա) (a + b) — 4a = a + b — 4a = -3a + b

բ) 6x — (4 — 7x) = 6x — 4 + 7x = -13x -4

գ)(4b + 2) — (5 — b) = 4b + 2 — 5 + b = 5b — 3

դ) (2x — 7a) — (4a + x) = 2x — 7a — 4a — x = x — 11a