Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x^4=(2*x-3)^2
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Equation 7x+3=30-2x
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Equation cos(x)=-sqrt(3)/2
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Equation sin(x^2)=0
- Express {x} in terms of y where:
- 1*x+7*y=8
- 4*x-13*y=13
- 4*x+3*y=-15
- -16*x+7*y=-5
- 7x+3
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Identical expressions
- 7x+ three = thirty -2x
- 7x plus 3 equally 30 minus 2x
- 7x plus three equally thirty minus 2x
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Similar expressions
- 7*x+3=30-2*x
- 7x-3=30-2x
- -7*x+3=30-2*x
- 9-7(x+3)=5-6x
- 7x+3=30+2x
7x+3=30-2x equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Move free summands (without x)
from left part to right part, we given:
$$7 x = 27 - 2 x$$
Move the summands with the unknown x
from the right part to the left part:
$$9 x = 27$$
Divide both parts of the equation by 9
We get the answer: x = 3
7*x+3 = 30-2*x
Move free summands (without x)
from left part to right part, we given:
$$7 x = 27 - 2 x$$
Move the summands with the unknown x
from the right part to the left part:
$$9 x = 27$$
Divide both parts of the equation by 9
x = 27 / (9)
We get the answer: x = 3
The graph