Solve the equation 3(x+4)=2x+4x-6 for x.

Mathematics

1 answer:

slavikrds [6]3 years ago

3 0

Answer:

x=6

Step-by-step explanation:

Let us expand the left side:

3x+12 = 2x+ 4x -6

Let us then simplify the right side:

3x+12=6x-6

We can now put the same variables on one side to isolate x:

12+6=6x-3x

18=3x

x=6

<em>I hope this helped! :)</em>

You might be interested in

Helppppppppppppppppp

xz_007 [3.2K]

Answer:

x = 20

Step-by-step explanation:

If two lines are cut by a transversal and the corresponding angles are congruent, the lines are parallel.

$\rm \longrightarrow \angle 2 = \angle 5 \\ \\ \rm \longrightarrow 3x - 20 = x + 20 \\ \\ \rm Add \ 20 \ both \ sides: \\ \rm \longrightarrow 3x - 20 + 20 = x + 20 + 20 \\ \\ \rm \longrightarrow 3x = x + 40 \\ \\ \rm Substrate \ x \ from \ both \ sides: \\ \rm \longrightarrow 3x - x = x - x + 40 \\ \\ \rm \longrightarrow 2x = 40 \\ \\ \rm Divide \ both \ sides \ by \ 2: \\ \rm \longrightarrow \frac{ \cancel{2}x }{ \cancel{2}} = \dfrac{40}{2} \\ \\ \rm \longrightarrow x = 20$