Mister Exam
Other calculators
-
How to use it?
- Equation:
-
Equation -7x=4
-
Equation x^2-6=0
- Equation x^2-x-90=0
-
Equation x^2+7*x+12=0
- Express {x} in terms of y where:
- -6*x-11*y=-20
- -15*x+7*y=1
- -1*x-20*y=1
- -1*x-15*y=13
-
Identical expressions
- nineteen +x= four (x- three)+ seven
- 19 plus x equally 4(x minus 3) plus 7
- nineteen plus x equally four (x minus three) plus seven
- 19+x=4x-3+7
-
Similar expressions
- 19-x=4(x-3)+7
- 19+x=4(x-3)-7
- 19+x=4(x+3)+7
19+x=4(x-3)+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 right part
Looking for similar summands in the right part:
Move free summands (without x)
from left part to right part, we given:
$$x = 4 x - 24$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-3\right) x = -24$$
Divide both parts of the equation by -3
We get the answer: x = 8
19+x = 4*(x-3)+7
Expand brackets in the right part
19+x = 4*x-4*3+7
Looking for similar summands in the right part:
19 + x = -5 + 4*x
Move free summands (without x)
from left part to right part, we given:
$$x = 4 x - 24$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-3\right) x = -24$$
Divide both parts of the equation by -3
x = -24 / (-3)
We get the answer: x = 8
The graph