Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation e^x=0
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Equation x^2=10
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Equation cos(x)=3
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Equation x^2-3x-4=0
- Express {x} in terms of y where:
- 2*x+2*y=-6
- 7*x+20*y=-17
- 12*x+14*y=-15
- -11*x+10*y=-9
- Graphing y =:
- 2*x+4
- Canonical form:
- 2*x+4
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Identical expressions
- eight *x- three *(two *x+ one)= two *x+ four
- 8 multiply by x minus 3 multiply by (2 multiply by x plus 1) equally 2 multiply by x plus 4
- eight multiply by x minus three multiply by (two multiply by x plus one) equally two multiply by x plus four
- 8x-3(2x+1)=2x+4
- 8x-32x+1=2x+4
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Similar expressions
- 8*x+3*(2*x+1)=2*x+4
- 2cos^2x+4sin^2x=3
- 8*x-3*(2*x+1)=2*x-4
- 70-(2x+4):4=65
- 8*x-3*(2*x-1)=2*x+4
- 5x-12-2(x-1)=3(5-2x)+4x
- 8x-3(2x+1)=2×+4
- 3sin^2(x)+4sin(x)cos(x)+cos^2(x)=0
8*x-3*(2*x+1)=2*x+4 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Expand brackets in the left part
Looking for similar summands in the left part:
Move free summands (without x)
from left part to right part, we given:
$$2 x = 2 x + 7$$
Move the summands with the unknown x
from the right part to the left part:
$$0 = 7$$
This equation has no roots
8*x-3*(2*x+1) = 2*x+4
Expand brackets in the left part
8*x-3*2*x-3*1 = 2*x+4
Looking for similar summands in the left part:
-3 + 2*x = 2*x+4
Move free summands (without x)
from left part to right part, we given:
$$2 x = 2 x + 7$$
Move the summands with the unknown x
from the right part to the left part:
$$0 = 7$$
This equation has no roots
The graph