Question

PLS HELPPPPP ex 5 DAU COROANĂ

Answer 1

5. a = 39; b + c = 36

a) a + b + c = 39 + 36 = 75.

b) 3a + b + c = 3 · 39 + 36 = 153.

c) a - (b + c) = 39 - 36 = 3.

d) a + 2b + 2c = a + 2 · (b + c) = 39 + 2 · 36 = 111.

e) a + 3b + 3c = a + 3 · (b + c) = 39 + 3 · 36 = 147.

/rfd