A = -3, b = -4, maka nilai 2a – b adalah

a = -3

b = -4

2a – b

= 2(-3) – (-4)

= -6 – (-4)

= -6 + 4

= -2

Jawaban:

2a : 2(-3)

2a-b =2(-3)-(-4) = -6 + 4 = -2