Question

b) Solve: 80 » (150 + 30 – 20) Ú 40​

Answer 1

Answer:

Question:

80 x (150 + 30 - 20) = 40

Answer:

80x(150+30−20)=40

80x(180−20)=40

80x+160=40

80x=40−160

80x=−120

x=−120/80

x=−1.5

CONCLUSION:

So , the answer is -1.5

Answer 2

Answer:

Question:

80 x (150 + 30 - 20) = 40

Answer:

\mapsto\red{80x(150+30-20)=40}↦80x(150+30−20)=40

\mapsto\red{80x(180-20)=40}↦80x(180−20)=40

\mapsto\red{80x+160=40}↦80x+160=40

\mapsto\red{80x=40-160}↦80x=40−160

\mapsto\red{80x=-120}↦80x=−120

\mapsto\red{x=-120/80}↦x=−120/80

\mapsto\red{x=-1.5}↦x=−1.5

CONCLUSION:

So , the answer is -1.5

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Step-by-step explanation:

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