Question

допоможіть будь ласка!!!

Answer 1

$0.2 + (a - 0.1) = 0.2 + a - 0.1 = a + 0.1$

$(c - 2) + 5 = c - 2 + 5 = c + 3$

$- (a + 5) + 4 = - a - 5 + 4 = - a - 1$

$1.8 - (a - 0.2) = 1.8 - a + 0.2 = 2 - a$

$(a - 3) - (b - 2) = a - 3 - b + 2 = a - b - 1$

$- ( - x + 2) + (y + 1) = x - 2 + y + 1 = x + y - 1$