Question

rezolvati ecuatiile:2x+7=x+32,3x-8=x+48,4x+5=x+68,25-3x=17-x,5x+7=23+x,6x+10=2x+50...va rog sa ma ajutati e urgent..

Answer 1

2x+7=x+32
2x-x=32-7
x=25

3x-8=x+48
3x-x=48+8
2x=56
x=56/2=28

4x+5=x+68
4x-x=68-5
3x=63
x=63/3=21

25-3x=17-x
25-17=3x-x
8=2x
x=8/2=4

5x+7=23+x
5x-x=23-7
4x=16
x=16/4=4

6x+10=2x+50
6x-2x=50-10
4x=40
x=40/4=10

Spor la lucru!

Answer 2

2x+7=x+32⇒2x-x=32-7⇒x=25

3x-8=x+48⇒3x-x=48+8⇒2x=56⇒x=28

4x+5=x+68⇒4x-x=68-5⇒3x=63⇒x=21

25-3x=17-x⇒25-17=-x+3x⇒12=2x⇒x=6

5x+7=23+x⇒5x-x=23-7⇒4x=16⇒x=4

6x+10=2x+50⇒6x-2x=50-10⇒4x=40⇒x=10