Question

ma poate ajuta cineva cu exercitiite astea
(2×2+2-2:2×2)×(2×2-2:1)×h=8×8:8×10




63:7+27:3-(48+8):(11-3)=i+9.

Answer 1

(2×2+2-2:2×2)×(2×2-2:1)×h=8×8:8×10
(4+2-2)x(4-2)xh=64:8x10
4x2xh=80
8xh=80
h=80:8
h=10


63:7+27:3-(48+8):(11-3)=i+9. 
9+9-56:8=i+9
18-7=i+9
11=i+9
i=11-9
i=2