48x+36(x-1)=13248x+36(x-1)=132

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48x+36(x-1)=13248x+36(x-1)=13248x+36(x-1)=13248x+36(x-1)=13248x+36(x-1)=13248x+36(x-1)=13248x+36x-36

48x+36(x-1)=13248x+36(x-1)=132
48x+36(x-1)=132
48x+36(x-1)=132

48x+36(x-1)=13248x+36(x-1)=132
48x+36x-36=132
84x=168
x=2