Предмет: Математика, автор: kanatova4аида

Решите уравнения:
18+3х=х+14
13х+27=16х+4,5
13х+70=2х+15

Ответы

Автор ответа: sramos41
0
1) 18+3x=x+14
3x-x=14-18
2x=-4
x=-2

2)13x+27=16x+4.5
13x-16x=4.5-27
-3x=-22.5
x=7.

3)13x+70=2x+15
13x-2x-15-70
11x=-55
x=-5
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