Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 10*(x-9)=7
- Equation x+y+2=0
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Equation 8*x-3*(2*x+1)=2*x+4
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Equation sin(x)=3/4
- Express {x} in terms of y where:
- 4*x-7*y=4
- 8*x+3*y=4
- 11*x-19*y=14
- 4*x-3*y=-15
- Graphing y =:
- 9-2*(-4*x+7)
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Identical expressions
- nine - two *(- four *x+ seven)= seven
- 9 minus 2 multiply by ( minus 4 multiply by x plus 7) equally 7
- nine minus two multiply by ( minus four multiply by x plus seven) equally seven
- 9-2(-4x+7)=7
- 9-2-4x+7=7
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Similar expressions
- 9-2*(-4*x-7)=7
- 9-2*(-4x+7)=7
- 9-2(-4x+7)=7(-5x2)-148
- 9-2*(4*x+7)=7
- 9-2(-4x+7)=7x
- 9+2*(-4*x+7)=7
9-2*(-4*x+7)=7 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
Move free summands (without x)
from left part to right part, we given:
$$8 x = 12$$
Divide both parts of the equation by 8
We get the answer: x = 3/2
9-2*(-4*x+7) = 7
Expand brackets in the left part
92*4*x-2*7 = 7
Move free summands (without x)
from left part to right part, we given:
$$8 x = 12$$
Divide both parts of the equation by 8
x = 12 / (8)
We get the answer: x = 3/2
Sum and product of roots
[src]
sum
3/2
$$\frac{3}{2}$$
=
3/2
$$\frac{3}{2}$$
product
3/2
$$\frac{3}{2}$$
=
3/2
$$\frac{3}{2}$$
3/2
The graph