Mister Exam
Other calculators
-
How to use it?
- Equation:
-
Equation 5-2x=11-7(x+2)
-
Equation -9(8-9x)=4x+5
-
Equation 12x+5(6-3x)=10-3x
- Equation x^5-32=0
- Express {x} in terms of y where:
- -10*x-16*y=-6
- 16*x+7*y=8
- -11*x+4*y=-8
- 17*x-11*y=2
-
Identical expressions
- three (five -2x)+4x=-7x
- 3(5 minus 2x) plus 4x equally minus 7x
- three (five minus 2x) plus 4x equally minus 7x
- 35-2x+4x=-7x
-
Similar expressions
- 3(5-2x)-4x=-7x
- 3(5-2x)+4x=+7x
- 5-2x=11-7(x+2)
- 3(5+2x)+4x=-7x
3(5-2x)+4x=-7x 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:
$$- 2 x = - 7 x - 15$$
Move the summands with the unknown x
from the right part to the left part:
$$5 x = -15$$
Divide both parts of the equation by 5
We get the answer: x = -3
3*(5-2*x)+4*x = -7*x
Expand brackets in the left part
3*5-3*2*x+4*x = -7*x
Looking for similar summands in the left part:
15 - 2*x = -7*x
Move free summands (without x)
from left part to right part, we given:
$$- 2 x = - 7 x - 15$$
Move the summands with the unknown x
from the right part to the left part:
$$5 x = -15$$
Divide both parts of the equation by 5
x = -15 / (5)
We get the answer: x = -3
The graph