4x+40.5-5.5=23.5怎么解?
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解:解方程,此方程的解为x = -23/8,【即x = -2.875】
4x + 40.5 - 5.5 = 23.5
4x + 35 = 23.5
4x = 23.5 - 35
4x = -11.5
4x = -(11×10+5)/10
4x = -115/10
4x = -23/2
x = -23/2 ÷ 4
x = -23/2 × 1/4
x = -23/8
∴x = -2.875
答:此方程的解为x = -23/8,【即x = -2.875】
4x + 40.5 - 5.5 = 23.5
4x + 35 = 23.5
4x = 23.5 - 35
4x = -11.5
4x = -(11×10+5)/10
4x = -115/10
4x = -23/2
x = -23/2 ÷ 4
x = -23/2 × 1/4
x = -23/8
∴x = -2.875
答:此方程的解为x = -23/8,【即x = -2.875】
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