Question

solve for x 1) 2x+1=9 2) - 2+x=10 3) 5x+2x=13 4) 3x=5by3 5)-xby2=10​

Answer 1

Step-by-step explanation:

1. 2x+1=9

2x=9-1

2x=8

x=8÷2

x=4

2.-2+x=10

x=10+2

x=12

3.5x+2x=13

7x=13

x=13/7

4.3x=5/3

x=(5/3)/3

x=5/9

5.-x/2=10

-x=10×2

-x=20

x=-20