Mister Exam
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- Equation:
- Equation x+y=15
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Equation (x-11)/(x-6)=11/16
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Equation -(-y+4)+2*y+1=0
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Equation 7(x+2)=-14
- Express {x} in terms of y where:
- -5*x+19*y=-12
- 4*x+7*y=-9
- 20*x+16*y=-7
- -4*x+19*y=-3
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Identical expressions
- seven (x+ two)=- fourteen
- 7(x plus 2) equally minus 14
- seven (x plus two) equally minus fourteen
- 7x+2=-14
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Similar expressions
- 7(x+2)=+14
- –7x+2(6–4x)+4=9(3x–1)–5(8x–3)
- 3x^2-7x+2=0
- -27*x+220=-5*x
- 7(x-2)=-14
7(x+2)=-14 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:
$$7 x = -28$$
Divide both parts of the equation by 7
We get the answer: x = -4
7*(x+2) = -14
Expand brackets in the left part
7*x+7*2 = -14
Move free summands (without x)
from left part to right part, we given:
$$7 x = -28$$
Divide both parts of the equation by 7
x = -28 / (7)
We get the answer: x = -4
The graph