Mister Exam
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How to use it?
- Equation:
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Equation sin(x)=0
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Equation -7-x=3x+17
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Equation (7x+1)-(9x+4)=5
- Equation sin(x-0,5)=(|x^2-(0,5)^2(e)^x|)^(1/3)
- Express {x} in terms of y where:
- -9*x+12*y=-10
- -17*x-19*y=-18
- -14*x+11*y=20
- 11*x+10*y=17
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Identical expressions
- (7x+ one)-(9x+ four)= five
- (7x plus 1) minus (9x plus 4) equally 5
- (7x plus one) minus (9x plus four) equally five
- 7x+1-9x+4=5
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Similar expressions
- (7x-1)-(9x+4)=5
- (7x+1)+(9x+4)=5
- (7x+1)-(9x-4)=5
(7x+1)-(9x+4)=5 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:
$$- 2 x = 8$$
Divide both parts of the equation by -2
We get the answer: x = -4
(7*x+1)-(9*x+4) = 5
Expand brackets in the left part
7*x+1-9*x-4 = 5
Looking for similar summands in the left part:
-3 - 2*x = 5
Move free summands (without x)
from left part to right part, we given:
$$- 2 x = 8$$
Divide both parts of the equation by -2
x = 8 / (-2)
We get the answer: x = -4
The graph