Question

решите уравнение 3(0,3х-5)-2(0,3х-5)=10+0,4х

Answer 1

3*(0,3x - 5) - 2*(0.3x-5) = 10 + 0.4x
(0.3x-5)(3+2)=10+0.4x
0.3x-5=10+0.4x
0.3x-0.4x=10+5
-0.1x=15
x=150

Answer 2

3*0,3x-5*3-2*0.3x-2*(-5)=10+0.4x
0.9x-15-0.6x+10=10+0.4x
0.9x-0.6x-0.4x=10-10+15
-0.1x=15
x=-150