Периметр равнобедренного треугольника равен 15,6 м. Найдите его стороны , если основание меньше боковой стороны на 3 м.

3x-4=6-x

помогите мне пожалуйста

ПОМОГИТЕ ПОЖАЛУЙСТА С ДОМАШНИМ ЗАДАНИЕМ!

WHAT IS FAMILY?

WHO IS FAMILY?

ONE AND ANOTHER MAKES TWO IS A FAMILY.

BABY AND  FATHER AND MOTHER:A FAMILY.

PARENTS AHD SISTER AND BROTHER:A FAMILY.

ALL KINDS OF PEOPLE CAN MAKE UP A FAMILY.

ALL KINDS OF MIXTURES CAN  MAKE UP A FAMILY.

WHAT IS A FAMILY?

WHO IS A FAMILY?

THE CHILDREN THAT LIVED IN A SHOE IS A FAMILY.

A PAIR LIKE KANGA AND ROO IS A FAMILY!

A CALF AND A COW  THAT GO MOO IS A FAMILY!

ALL KINDS OF CREATURES CAN MAKE UP A FAMILY.

ALL KINDS OF  NUMBERS CAN MAKE UP A FAMILY.

ALL OF YOUR FAMILY PLUS YOU IS A FAMILY!

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