Simple
简易方程
Worded
列方程
Brackets
带括号的方程
Equivalent
等式两边都有字母的方程
Stating the steps
解题步骤
100

5b + 3 = 28

b = 5

100

y减去5得到3

y - 5 = 3

100

 3(2x + 1) = 18

x = 5/2 or x=1 1/2

100

4b + 1 = 2b - 15

b = -8

100

如何计算 5p - 4 = 0？

Add 4 then divide by 5

200

3f - 2 = -14

f = -4

200

比x的2倍还多3的数是 13.

2x + 3 = 13

200

5(7x + 2) = 65x

x = 1/3

200

30 - p = 5p + 6

p = 4

200

如何计算 1 - 4n = 0

Subtract 1 then divide by 4.

300

6x + 3x - 4 = 14

x = 2

300

一个数的4倍减去11后等于这个数的7倍减去2

4x - 11 = 7 - 2x

300

 - 4(3 - x) + 8 = - 12

x = -2

300

4(2d - 3) = 6d + 2

d = 7

300

如何计算 2k / 3 + 1 = 3 ？

Subtract 1 to RHS Multiply RHS by 3 Divide answer by 2

400

(x - 4) /3 = 17

x = 55

400

Sam有42根棒棒糖，分给自己和朋友们。Sam的糖是Nick的2倍, Minh的糖是Nick的3倍。求Nick有多少糖？

x + 2x + 3x = 42

400

 - 7(5 -2x) - 6x = 13

x = 6

400

5(2h + 3) = 4(3h +1)

h = 11/2 or h = 5 1/2

400

如何计算 g - 11 = 5 - g ？

Group like terms. Add the pronumerals Add the constants

500

3x/7 + 5 = 8

x = 7

500

Amy的年龄是Lucy的2倍。三年后, 她们的年龄之和是 42。求Lucy的年龄。

(x + 3) + (2x + 3) = 42

500

 3(7 - 2x) / 16 = 1/4

x = 17/6 or x = 2 5/6

500

4(2y + 3) / 5 = 5(2 - y) / 2

y = 26/41

500

如何计算 3(m + 2) = m -5 ？

Expand the brackets. Group like terms. Subtract m from 3m. Subtract 6 from - 5 Divide the RHS by 2

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