x/0.5+2+x=5怎么算?
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解:解方程,此方程的解为x = 1
x/0.5+2+x=5
(1 ÷ 0.5)x + 2 + x = 5
(1 ÷ 5/10 )x + 2 + x = 5
(1 ÷ 1/2)x + 2 + x = 5
(1 × 2)x + 2 + x = 5
2x + 2 + x = 5
3x = 5 - 2
3x = 3
x = 3 ÷ 3
x = 3 × 1/3
x = 3/3
∴x = 1
答:此方程的解为x = 1
x/0.5+2+x=5
(1 ÷ 0.5)x + 2 + x = 5
(1 ÷ 5/10 )x + 2 + x = 5
(1 ÷ 1/2)x + 2 + x = 5
(1 × 2)x + 2 + x = 5
2x + 2 + x = 5
3x = 5 - 2
3x = 3
x = 3 ÷ 3
x = 3 × 1/3
x = 3/3
∴x = 1
答:此方程的解为x = 1
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