Mister Exam
Other calculators
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How to use it?
- Equation:
- Equation a^2*x^2-21*a^2+a*x+1=0
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Equation 5x^2-10x=0
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Equation x^2-4*x+9=0
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Equation 10x+3(7-2x)=13+2x
- Express {x} in terms of y where:
- 3*x-17*y=-6
- -20*x-19*y=11
- 6*x+13*y=-7
- 18*x+20*y=-13
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Identical expressions
- 10x+ three (seven -2x)= thirteen +2x
- 10x plus 3(7 minus 2x) equally 13 plus 2x
- 10x plus three (seven minus 2x) equally thirteen plus 2x
- 10x+37-2x=13+2x
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Similar expressions
- 10x+3(7-2x)=13-2x
- (x-1)^3+(2*x+3)^3=27*x^3+8
- 10x-3(7-2x)=13+2x
- 10x+3(7+2x)=13+2x
- 10*x+3*(7-2*x)=13+2*x
10x+3(7-2x)=13+2x 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:
$$4 x = 2 x - 8$$
Move the summands with the unknown x
from the right part to the left part:
$$2 x = -8$$
Divide both parts of the equation by 2
We get the answer: x = -4
10*x+3*(7-2*x) = 13+2*x
Expand brackets in the left part
10*x+3*7-3*2*x = 13+2*x
Looking for similar summands in the left part:
21 + 4*x = 13+2*x
Move free summands (without x)
from left part to right part, we given:
$$4 x = 2 x - 8$$
Move the summands with the unknown x
from the right part to the left part:
$$2 x = -8$$
Divide both parts of the equation by 2
x = -8 / (2)
We get the answer: x = -4
The graph