Question

(-20)×[(-7)+(-11)]=[(-20)×(-7)]+[(-20)×(-11)]​

Answer 1

Answer:

the property used in the above text is distributive property...

so LHS=RHS

i.e 129=129

hope it helps

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Answer 2

Step-by-step explanation:

−20×(−7)+(−11) = 129

−20×(−7)+(−20)×(−11) = 360

129+x = 360

x = 360 - 129

= 231

• 129+231=360