Mister Exam
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How to use it?
- Equation:
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Equation -20*(x-13)=-220
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Equation x-x/12=55/12
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Equation 3^x=81
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Equation 12-x^2=11
- Express {x} in terms of y where:
- 18*x+19*y=7
- 16*x-15*y=4
- 1*x+6*y=6
- 20*x+9*y=17
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Identical expressions
- two x- four (x+ seven)= three (2-x)
- 2x minus 4(x plus 7) equally 3(2 minus x)
- two x minus four (x plus seven) equally three (2 minus x)
- 2x-4x+7=32-x
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Similar expressions
- 2x-4(x-7)=3(2-x)
- (x+3)^2-x=(x-2)(2+x)
- 3*(2-x)-2*(5x+4)=6
- 32-x=918\35
- 32-x=32
- 2x-4(x+7)=3(2+x)
- 2x+4(x+7)=3(2-x)
2x-4(x+7)=3(2-x) equation
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The solution
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2*x - 4*(x + 7) = 3*(2 - x)
$$2 x - 4 \left(x + 7\right) = 3 \left(2 - x\right)$$
Detail solution
Given the linear equation:
Expand brackets in the left part
Expand brackets in the right part
Looking for similar summands in the left part:
Move free summands (without x)
from left part to right part, we given:
$$- 2 x = 34 - 3 x$$
Move the summands with the unknown x
from the right part to the left part:
$$x = 34$$
We get the answer: x = 34
2*x-4*(x+7) = 3*(2-x)
Expand brackets in the left part
2*x-4*x-4*7 = 3*(2-x)
Expand brackets in the right part
2*x-4*x-4*7 = 3*2-3*x
Looking for similar summands in the left part:
-28 - 2*x = 3*2-3*x
Move free summands (without x)
from left part to right part, we given:
$$- 2 x = 34 - 3 x$$
Move the summands with the unknown x
from the right part to the left part:
$$x = 34$$
We get the answer: x = 34
The graph