\( (13 x+19)+(12 x+2)=121 \)
Answer
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Answer
\( x = 4 \)
Steps
Step 1 ：\( (13x + 19) + (12x + 2) = 121 \)
Step 2 ：\( 25x + 21 = 121 \)
Step 3 ：\( 25x = 100 \)
Step 4 ：\( x = 4 \)
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