
x-(-5)=3[x-(-2)]
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解:解方程, 此方程的解为x = -1/2,【即x = -0.5】
x - (-5)= 3[x - (-2)]
x + 5 = 3×(x + 2)
x + 5 = 3 × x + 3 × 2
x + 5 = 3x + 6
3x - x = 5 - 6
2x = -1
x = (-1) ÷ 2
x = (-1) × 1/2
x = -1/2
∴x = -0.5
答:此方程的解为x = -1/2,【即x = -0.5】
x - (-5)= 3[x - (-2)]
x + 5 = 3×(x + 2)
x + 5 = 3 × x + 3 × 2
x + 5 = 3x + 6
3x - x = 5 - 6
2x = -1
x = (-1) ÷ 2
x = (-1) × 1/2
x = -1/2
∴x = -0.5
答:此方程的解为x = -1/2,【即x = -0.5】
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