acj1134 acj1134
  • 23-06-2019
  • Mathematics
contestada

Solve the inequality -1+4y<_31.

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gmany
gmany gmany
  • 23-06-2019

Answer:

[tex]\large\boxed{y\leq8\to\{y\ |\ y\leq8\}\to y\in(-\infty,\ 8]}[/tex]

Step-by-step explanation:

[tex]-1+4y\leq31\qquad\text{add 1 to both sides}\\\\-1+1+4y\leq31+1\\\\4y\leq32\qquad\text{divide both sides by 4}\\\\\dfrac{4y}{4}\leq\dfrac{32}{4}\\\\y\leq8[/tex]

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