Mister Exam
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How to use it?
- Equation:
- Equation 64-x^2=0
- Equation (x^2+a)/x+x/(x^2+a)=-5/2
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Equation 16x^2-1=0
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Equation x^2-6x+13=0
- Express {x} in terms of y where:
- -8*x-2*y=-11
- -14*x-7*y=-10
- -20*x-12*y=-17
- 3*x+8*y=-7
- Derivative of:
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3*x+5
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Identical expressions
- three *x+ five = eight *x- fifteen
- 3 multiply by x plus 5 equally 8 multiply by x minus 15
- three multiply by x plus five equally eight multiply by x minus fifteen
- 3x+5=8x-15
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Similar expressions
- -3x+5y+3z=-5
- 14×(2x-3)-5(x+4)=2×(3x+5)+5x
- 3x+5=x
- 3*x-5=8*x-15
- 2x^2-3x+5=0
- 3*x+5=8*x+15
3*x+5=8*x-15 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:
$$3 x = 8 x - 20$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-5\right) x = -20$$
Divide both parts of the equation by -5
We get the answer: x = 4
3*x+5 = 8*x-15
Move free summands (without x)
from left part to right part, we given:
$$3 x = 8 x - 20$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-5\right) x = -20$$
Divide both parts of the equation by -5
x = -20 / (-5)
We get the answer: x = 4
The graph