4x+20=76 3x-15=27 7x-3乘5=55 7x+2=4.5 4x-1.5x=22.5 2(x-1.3)=8 (x+3)除以2=6.5是方程哦
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4x+20=76 3x-15=27 7x-3乘5=55 7x+2=4.5 4x-1.5x=22.5 2(x-1.3)=8 (x+3)除以2=6.5是方程哦
4x+20=76 3x-15=27 7x-3乘5=55 7x+2=4.5 4x-1.5x=22.5 2(x-1.3)=8 (x+3)除以2=6.5
是方程哦
4x+20=76 3x-15=27 7x-3乘5=55 7x+2=4.5 4x-1.5x=22.5 2(x-1.3)=8 (x+3)除以2=6.5是方程哦
4x+20=76
4x=76-20
4x=56
x=56÷4
x=14
3x-15=27
3x=27+15
3x=42
x=42÷3
x=14
7x-3乘5=55
7x-15=55
7x=55+15
7x=70
x=70÷7
x=10
7x+2=4.5
7x=4.5-2
7x=2.5
x=2.5÷7
x=5/14
4x-1.5x=22.5
(4-1.5)x=22.5
2.5x=22.5
x=22.5÷2.5
x=9
2(x-1.3)=8
x-1.3=8÷2
x-1.3=4
x=4+1.3
x=5.3
(x+3)除以2=6.5
x+3=6.5×2
x+3=13
x=13-3
x=10
小学问题,问问家长。
4x + 20 = 76
4x = 76 - 20
4x = 56
x = 56÷4
x = 14
3x - 15 = 27
3x = 27 + 15
3x = 42
x = 42÷3
x = 14
7x - 3×5=55
7x - 15 = 55
7x = 55 + 15
7x = 70
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4x + 20 = 76
4x = 76 - 20
4x = 56
x = 56÷4
x = 14
3x - 15 = 27
3x = 27 + 15
3x = 42
x = 42÷3
x = 14
7x - 3×5=55
7x - 15 = 55
7x = 55 + 15
7x = 70
x = 70÷7
x = 10
7x + 2 = 4.5
7x = 4.5 - 2
7x = 2.5
7x = 5/2
x = 5/2 ÷ 7
x = 5/14
4x - 1.5x = 22.5
2.5x = 22.5
x = 22.5 ÷ 2.5
x = 9
2(x - 1.3) = 8
x - 1.3 = 8÷2
x - 1.3 = 4
x = 4 + 1.3
x = 5.3
(x + 3)÷2 = 6.5
x + 3 = 6.5×2
x + 3 = 13
x = 13 - 3
x = 10
收起
4x+20=76
4x=76-20
4x=56
x=56/4
x=14
3x-15=27
3x=27+15
3x=42
x=42/3
x=14
7x-3乘5=55
7x-15=55
7x=55+15
7x=70
x=70/7
x=10
7x+2=4.5
7x...
全部展开
4x+20=76
4x=76-20
4x=56
x=56/4
x=14
3x-15=27
3x=27+15
3x=42
x=42/3
x=14
7x-3乘5=55
7x-15=55
7x=55+15
7x=70
x=70/7
x=10
7x+2=4.5
7x=4.5-2
7x=2.5
x=2.5/7
x=5/14
4x-1.5x=22.5
2.5x=22.5
x=22.5/2.5
x=9
2(x-1.3)=8
2x-2.6=8
2x=8+2.6
2x=10.6
x=10.6/2
x=5.3
(x+3)除以2=6.5
x+3=6.5*2
x+3=13
x=13-3
x=10
收起