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How to solve the equation 5x + 3 times 15 = 215
Is it 5x + 3 × 15 = 215
If so
5X + 3 × 15 = 215
5X + 45 = 215
5X = 215 - 45
5X = 175
X = 175 ÷ 5
X = 35
3(x+15)=5x-9
3（x+15)=5x-9
3x+45=5x-9
5x-3x=45+9
2x=54
x=27
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