Question

Find the solution mentally. 3⋅(-4)=a b⋅(-3)=-12 (-12)⋅c=12 d⋅24=-12

Answer 1

a=-12

b=15

c=12

d=-12

Explanation:

3(-4)=a

b(-3)=12

c=12

d(24)=12

3(-4)=a

-12=a

a=-12

b(-3)=12

-3b=12

b=12+3

b=15

c= 12

d(24)=12

24d=12

d=12-24

d=-12