
x+4=2x-3(2x-3)
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解:解方程, 此方程的解为x = 1
x + 4 = 2x - 3(2x - 3)
x + 4 = 2x - 3 × 2x + 9
x + 4 = 2x - 6x + 9
x + 4 = -4x + 9
x + 4x = 9 - 4
5x = 5
x = 5 ÷ 5
x = 5 × 1/5
x = 5/5
∴x = 1
答:此方程的解为x = 1
x + 4 = 2x - 3(2x - 3)
x + 4 = 2x - 3 × 2x + 9
x + 4 = 2x - 6x + 9
x + 4 = -4x + 9
x + 4x = 9 - 4
5x = 5
x = 5 ÷ 5
x = 5 × 1/5
x = 5/5
∴x = 1
答:此方程的解为x = 1
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