Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 4x^2-9=0
- Equation 8*cos(x)+sin(7*x)-16*x=x3+8
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Equation 4-3x=6+x
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Equation x^2+5*x-36=0
- Express {x} in terms of y where:
- -7*x+15*y=18
- 2*x+18*y=20
- -4*x-4*y=19
- -10*x-2*y=18
- Sum of series:
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15
- Integral of d{x}:
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15
- Derivative of:
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15
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Identical expressions
- two (3y+ four)-(9y- seven)= fifteen
- 2(3y plus 4) minus (9y minus 7) equally 15
- two (3y plus four) minus (9y minus seven) equally fifteen
- 23y+4-9y-7=15
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Similar expressions
- 2(3y-4)-(9y-7)=15
- 2(3y+4)+(9y-7)=15
- 2(3y+4)-(9y+7)=15
2(3y+4)-(9y-7)=15 equation
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The solution
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2*(3*y + 4) + -9*y + 7 = 15
$$\left(7 - 9 y\right) + 2 \left(3 y + 4\right) = 15$$
Detail solution
Given the linear equation:
Expand brackets in the left part
Looking for similar summands in the left part:
Move free summands (without y)
from left part to right part, we given:
$$- 3 y = 0$$
Divide both parts of the equation by -3
We get the answer: y = 0
2*(3*y+4)-(9*y-7) = 15
Expand brackets in the left part
2*3*y+2*4-9*y+7 = 15
Looking for similar summands in the left part:
15 - 3*y = 15
Move free summands (without y)
from left part to right part, we given:
$$- 3 y = 0$$
Divide both parts of the equation by -3
y = 0 / (-3)
We get the answer: y = 0