Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x+5=12
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Equation (5+7*a)*15=-30
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Equation sqrt(5+|x-2|)=1-x
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Equation (x+1)²+(x-6)²=2x²
- Express {x} in terms of y where:
- 7*x+20*y=-3
- 3*x-12*y=7
- -11*x-17*y=-1
- 19*x+5*y=20
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Identical expressions
- −15x− seventeen =7x+ one hundred and thirty-seven
- −15x−17 equally 7x plus 137
- −15x− seventeen equally 7x plus one hundred and thirty minus seven
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Similar expressions
- −15x−17=7x-137
−15x−17=7x+137 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:
$$- 15 x = 7 x + 154$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-22\right) x = 154$$
Divide both parts of the equation by -22
We get the answer: x = -7
-15*x-17 = 7*x+137
Move free summands (without x)
from left part to right part, we given:
$$- 15 x = 7 x + 154$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-22\right) x = 154$$
Divide both parts of the equation by -22
x = 154 / (-22)
We get the answer: x = -7