1. 3р+5=8р-15 2. 0.7x-1.82=0.8x+3.46 3. 0.18x-3.54=0.19x-2.89 - вопрос №13581520718208346301835401928942325254556112224 от зяйка75542 23.11.2020 10:35

Question

Алгебра: 1. 3р+5=8р-15 2. 0.7x-1.82=0.8x+3.46 3. 0.18x-3.54=0.19x-2.89 4. 2-3(x+2)=5-2x 5. 4x-5.5=5x-3(2x-1.5) 6. 4(3-2x)+24=2(3++2x) 7. 0.9(4x-2)=0.5(3x-4)+4.4

зяйка75542 · Answer

1) 3р +5=8р-15 3р-8р=-15-5 р=42) 0.7х-0.8х=3.46+1.82 -0.1х = 5.28 х= - 52.83) 0.18х-0.19х=-2.89+3.54 -0.01х=0.65 х =-654) 2-3х-6=5-2х -4-3х=5-2х -3х+2х=5+4 -х=9 х= - 9...