Mister Exam
Other calculators
-
How to use it?
- Equation:
-
Equation x^2+9=(x+9)^2
-
Equation -x=4-3(3x-8)
-
Equation 9x-7=6x+14
-
Equation x+3=-9*x
- Express {x} in terms of y where:
- -18*x-1*y=-11
- 1*x-6*y=-19
- -1*x-20*y=-17
- 7*x+13*y=-13
- Derivative of:
- 6x+14
-
Identical expressions
- 9x- seven =6x+ fourteen
- 9x minus 7 equally 6x plus 14
- 9x minus seven equally 6x plus fourteen
-
Similar expressions
- 2*x^4+8*x^3-80*x^2-96*x+1440+0
- 9*x-7=6*x+14
- 9^x+1-9^x-72=0
- 9x+7=6x+14
- 9*x-72*√x=0
- (-9*x-(73/10)*y)+(13*y+(77/10)*x)=0
- 9x-7=6x-14
9x-7=6x+14 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Move free summands (without x)
from left part to right part, we given:
$$9 x = 6 x + 21$$
Move the summands with the unknown x
from the right part to the left part:
$$3 x = 21$$
Divide both parts of the equation by 3
We get the answer: x = 7
9*x-7 = 6*x+14
Move free summands (without x)
from left part to right part, we given:
$$9 x = 6 x + 21$$
Move the summands with the unknown x
from the right part to the left part:
$$3 x = 21$$
Divide both parts of the equation by 3
x = 21 / (3)
We get the answer: x = 7
The graph