Problem

{x+y=175x=4y+20

Answer

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Answer

5. Solve for x: x=124

Steps

Step 1 ：1. Substitute x from equation 2 into equation 1: y+4y+20=175

Step 2 ：2. Combine like terms: 5y+20=175

Step 3 ：3. Solve for y: y=31

Step 4 ：4. Substitute y into equation 2: x=4(31)+20

Step 5 ：5. Solve for x: x=124

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