Mister Exam
其他计算器
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如何使用？
- 方程:
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方程 -x^3+14*x^2-61*x+84=0
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方程 2x^2+6x=0
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方程 6(x-3)=12
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方程 7x+x+3=19
- 在方程中将 {x} 用 y 表示:
- 5*x+4*y=9
- 17*x-5*y=11
- 18*x-3*y=-12
- -17*x+20*y=5
- 级数和:
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28
- 28
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等价表达式
- thirty-four + two (2x- nine)= twenty-eight
- 34 加 2(2x 减 9) 等于 28
- thirty 减 four 加 two (2x 减 nine) 等于 twenty 减 eight
- 34+22x-9=28
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相似表达式
- 34-2(2x-9)=28
- 34+2(2x+9)=28
34+2(2x-9)=28 方程
有了正确解答，你会成为小组里最受欢迎的人❤️😊
解答
Detail solution
Given the linear equation:
Expand brackets in the left part
Looking for similar summands in the left part:
Move free summands (without x)
from left part to right part, we given:
$$4 x = 12$$
Divide both parts of the equation by 4
We get the answer: x = 3
34+2*(2*x-9) = 28
Expand brackets in the left part
34+2*2*x-2*9 = 28
Looking for similar summands in the left part:
16 + 4*x = 28
Move free summands (without x)
from left part to right part, we given:
$$4 x = 12$$
Divide both parts of the equation by 4
x = 12 / (4)
We get the answer: x = 3