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受欢迎的代数 >

7(2+x)=5(x-12)+35

解答

7 (2 + x) = 5 (x - 12) + 35

解答

x = - \frac{39}{2}

+1

十进制

x = - 19.5

求解步骤

7 (2 + x) = 5 (x - 12) + 35

展开

7 (2 + x) : 14 + 7 x

展开

5 (x - 12) + 35 : 5 x - 25

14 + 7 x = 5 x - 25

将

14

到右边

7 x = 5 x - 39

将

5 x

para o lado esquerdo

2 x = - 39

两边除以

2

x = - \frac{39}{2}

作图

流行的例子

10*10^3=(2.145t_{2}-t_{2})*12.57

10 \cdot 1 0^{3} = (2.145 t_{2} - t_{2}) \cdot 12.57

solvefor y,(d-3)(d^2-6d+11)y=0

so l v e f or y, (d - 3) (d^{2} - 6 d + 11) y = 0

solvefor y,c(-4-2)yr=6

so l v e f or y, c (- 4 - 2) yr = 6

x-1/4+x-2/3 = 41/6

x - \frac{1}{4} + x - \frac{2}{3} = \frac{41}{6}

solvefor a,2a=sqrt(3b)+5

so l v e f or a, 2 a = 3 b + 5