Question

a) 2x + 5 = 13
b) X + 1 = 10
c) 2(x+3) -1= 15
d) X-3(x + 1) = 21​

Answer 1

Resposta:

a-)2×4+5=13

Explicação passo-a-passo:

2×4=8+5=13

Answer 2

olá !!!

$a)\\2x+5=13\\2x=13-5\\2x=8\\x=8/2\\x=4\\\\b)\\x+1=10\\x=10-1\\x=9\\\\c)\\2(x+3)-1=15\\2x+6-1=15\\2x=15-6+1\\2x=10\\x=10/2\\x=5\\\\d)\\x-3(x+1)=21\\x-3x+3=21\\-2x=21-3\\2x=-18\\x=-18/2\\x=-9$

espero ter ajudado

Att: Jovem Lendário