Mister Exam
Other calculators
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How to use it?
- Equation:
- Equation x+y=15
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Equation (x-11)/(x-6)=11/16
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Equation 8x−5(x+1)=−2x.
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Equation 4x+4=-6x-5
- Express {x} in terms of y where:
- 20*x+16*y=-7
- -5*x+4*y=-19
- 13*x+16*y=-15
- -14*x-16*y=-1
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Identical expressions
- four -(7x- five)= nine -(three +4x)
- 4 minus (7x minus 5) equally 9 minus (3 plus 4x)
- four minus (7x minus five) equally nine minus (three plus 4x)
- 4-7x-5=9-3+4x
-
Similar expressions
- 4-(7x-5)=9+(3+4x)
- 4+(7x-5)=9-(3+4x)
- 4-(7x-5)=9-(3-4x)
- 4-(7x+5)=9-(3+4x)
4-(7x-5)=9-(3+4x) equation
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The solution
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4 + -7*x + 5 = 9 + -3 - 4*x
$$\left(5 - 7 x\right) + 4 = \left(- 4 x - 3\right) + 9$$
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:
Looking for similar summands in the right part:
Move free summands (without x)
from left part to right part, we given:
$$- 7 x = - 4 x - 3$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-3\right) x = -3$$
Divide both parts of the equation by -3
We get the answer: x = 1
4-(7*x-5) = 9-(3+4*x)
Expand brackets in the left part
4-7*x+5 = 9-(3+4*x)
Expand brackets in the right part
4-7*x+5 = 9-3-4*x
Looking for similar summands in the left part:
9 - 7*x = 9-3-4*x
Looking for similar summands in the right part:
9 - 7*x = 6 - 4*x
Move free summands (without x)
from left part to right part, we given:
$$- 7 x = - 4 x - 3$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-3\right) x = -3$$
Divide both parts of the equation by -3
x = -3 / (-3)
We get the answer: x = 1