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4x - 8 + 36 = 90 + x + 4
4x + 28 = 94 + x
4x - x = 94 - 28
3x =66
x = 66/3
x = 22
Solución :
x = 22
4x-8+36=90+x+4
acomodamos terminos semejantes:
4x-x=90+4+8-36
sumamos o restamos terminos:
3x=66
despejamos x
x=66/3
x=22
Por lo tanto "x" vale 22
COMPROBAMOS:
4x-8+36=90+x+4
4(22)-8+36=90+22+4
88-8+36=90+22+4
116=116
Saludos cordiales, me alegra haberte ayudado!