Question

a+a+2+a+2+a якщо а=-20,1


5*(3х+2у)-3*(5х-2L). якщо у=-6,3;L=-6;х=2,3​

Answer 1

$a + a + 2 + a + 2 + a = 4a + 4 = 4(a + 1)$

$4( - 20.1 + 1) = 4 \times ( - 19.1) = - 76.4$

$5(3x + 2y) - 3(5x - 2l) = 15x + 10y - 15x + 6l = 10y + 6l$

$10 \times ( - 6.3) + 6 \times ( - 6) = - 63 - 36 = - 99$