Question

Diketahui a = -1, b = 4, dan c = 7, maka tentukan nilai dari
a. a + 2b - c
b. 3c - 5b x 2a
c. 7a : c x 4b
d. 4c - b + 5a

Answer 1

A. -1 + 2(4) - 7 = -1 + 8 -7 = 0
b. 3(7) - 5(4) x 2(-1) = 21 - 20 x -2 = 61
c. 7(-1) : 7 x 4(4) = -7 : 7 x 16 = -16
d. 4(7) - 4 + 5(-1) = 28 -4 + (-5) = 19