Question

1. Calculați (5^2-4^2):3

2.Revolvati ecuația 2*(x+1)-6=4

Answer 1

1. (5^2-4^2):3=(25-16):3=9:3=3


2. 2×(X+1)-6=4
2X+2-6=4
2x+2=4+6
2X+2=10
2X=10-2
2X=8
X=8:2
X=4