Mister Exam

Other calculators


4(1-2x)-7+3x=12

4(1-2x)-7+3x=12 equation

The teacher will be very surprised to see your correct solution 😉

v

Numerical solution:

Do search numerical solution at [, ]

The solution

You have entered [src]
4*(1 - 2*x) - 7 + 3*x = 12
$$3 x + \left(4 \left(1 - 2 x\right) - 7\right) = 12$$
Detail solution
Given the linear equation:
4*(1-2*x)-7+3*x = 12

Expand brackets in the left part
4*1-4*2*x-7+3*x = 12

Looking for similar summands in the left part:
-3 - 5*x = 12

Move free summands (without x)
from left part to right part, we given:
$$- 5 x = 15$$
Divide both parts of the equation by -5
x = 15 / (-5)

We get the answer: x = -3
The graph
Rapid solution [src]
x1 = -3
$$x_{1} = -3$$
x1 = -3
Sum and product of roots [src]
sum
-3
$$-3$$
=
-3
$$-3$$
product
-3
$$-3$$
=
-3
$$-3$$
-3
Numerical answer [src]
x1 = -3.0
x1 = -3.0
The graph
4(1-2x)-7+3x=12 equation