Mister Exam
Other calculators
-
How to use it?
- Equation:
- Equation a*x=b
-
Equation x^2-x+8=0
-
Equation 2^x=7
-
Equation 3x^2-2x=0
- Express {x} in terms of y where:
- 2*x+19*y=-7
- -4*x+7*y=-16
- -16*x+3*y=17
- 12*x-20*y=9
-
Identical expressions
- eleven - five (four x- thirty)=4
- 11 minus 5(4x minus 30) equally 4
- eleven minus five (four x minus thirty) equally 4
- 11-54x-30=4
-
Similar expressions
- 11-5(4x+30)=4
- 11+5(4x-30)=4
11-5(4x-30)=4 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:
$$- 20 x = -157$$
Divide both parts of the equation by -20
We get the answer: x = 157/20
11-5*(4*x-30) = 4
Expand brackets in the left part
11-5*4*x+5*30 = 4
Looking for similar summands in the left part:
161 - 20*x = 4
Move free summands (without x)
from left part to right part, we given:
$$- 20 x = -157$$
Divide both parts of the equation by -20
x = -157 / (-20)
We get the answer: x = 157/20
Sum and product of roots
[src]
sum
157 --- 20
$$\frac{157}{20}$$
=
157 --- 20
$$\frac{157}{20}$$
product
157 --- 20
$$\frac{157}{20}$$
=
157 --- 20
$$\frac{157}{20}$$
157/20