Question

решите уравнения:
-4(у-5)-3(у+4)=1
2,3(3-х)-4,5(2-6х)=22,6

Answer 1

-4y+20-3y-12=1
-7y=1-8
-7y=-7
y=-7:(-7)
y=1

6.9-2.3x-9+27x=22.6
24.7x=22.6+2.1
24.7x=24.7
x=24.7:24.7
x=1