Answer quick before I fail :)
2 answers:
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Perimeter is the sum of all the sides. So we can set up an equation:
Now solve for 'x', combine like terms:
When it comes to terms with variables it's just like normal addition but we keep the variable:
So we have:
Add:
Subtract 7x to both sides:
Subtract 4 to both sides:
Divide 5 to both sides:
Now solve for 'x', combine like terms:
When it comes to terms with variables it's just like normal addition but we keep the variable:
So we have:
Add:
Subtract 7x to both sides:
Subtract 4 to both sides:
Divide 5 to both sides:
Answer:
a.
b.
c.
d.
11, 3, 31, 11 = code
Step-by-step explanation:
a. * 2
=
2 =
=
*
=
=
b. /
=
*
=
=
=
c. *
=
(you can reduce 8 & 56 by dividing by 8: 56/8=7 & -8/8= -1)
d. 1 / 2
=
1 =
=
2 =
=
*
=
(you can reduce 15 & 30 by dividing by 15: 15/15=1 & 30/15 = 2)