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受欢迎的代数 >

12(2x-(5+6))=3x+(6*7)

解答

12 (2 x - (5 + 6)) = 3 x + (6 \cdot 7)

解答

x = \frac{58}{7}

+1

十进制

x = 8.28571 \dots

求解步骤

12 (2 x - (5 + 6)) = 3 x + (6 \cdot 7)

去除括号:

(a) = a

12 (2 x - (5 + 6)) = 3 x + 6 \cdot 7

数字相乘:

6 \cdot 7 = 42

12 (2 x - (5 + 6)) = 3 x + 42

展开

12 (2 x - (5 + 6)) : 24 x - 132

24 x - 132 = 3 x + 42

将

132

到右边

24 x = 3 x + 174

将

3 x

para o lado esquerdo

21 x = 174

两边除以

21

x = \frac{58}{7}

作图

流行的例子

solvefor x,9+7=4x+8z-2y

so l v e f or x, 9 + 7 = 4 x + 8 z - 2 y

solvefor x,2x-5y=14

so l v e f or x, 2 x - 5 y = 14

5 x + 2 = 42

12(-2/3 h+1)-10(3/5 h-3)=-7h

12 (- \frac{2}{3} h + 1) - 10 (\frac{3}{5} h - 3) = - 7 h

6 - 4 x = 7 x - 9 x - 4