Question

решите уравнение 7x+1-40*7x-1=63

Answer 1

7х + 1 - 40 * 7х - 1 = 63
7х + 1 - 280х - 1 = 63
7х - 280х = 63 + 1 - 1
- 273х = 63
х = 63 : (- 273)
х = - $\frac{63}{273}$
x = - $\frac{3}{13}$
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