Aider moi svp C pour demain merci 2(5x + 1 = 7) (2x + 3) + (3x - 1) = 10

2(5x+1) =7
10x+2 =7
10x = 7-2
10x =5
x = 5/10
x =1/2

(2x+3) +(3x-1) =10
2x+3+3x-1 =10
5x+2 =10
5x = 10-2
5x =8
x = 8/5