Question

11.(x – 15) = 132               

15 – x  = 20

 

 

 

Answer 1

\(\Leftrightarrow x-15=132:11\Leftrightarrow x-15=12\Leftrightarrow x=12+15=27\)

\(\Leftrightarrow x=15-20\Leftrightarrow x=-5\)

Answer 2

\(11(x-15)=132=>11x-55=132=>11x=187=>x=187:11=17\)

\(15-x=20=>x=15-20=>x=-5\)

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Answer 3

\(\text{11.(x – 15) = 132 }\\ \text{(x – 15) = 132:11 }=12\\ x=12+15=27\)

\(\text{15 – x = 20}\\ x=15-20=-5\)