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(
2
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(
4
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using the FOIL Method.
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Apply the distributive property.
2
(
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2
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−
i
(
4
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2
(
4
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-
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(
4
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Apply the distributive property.
2
⋅
4
+
2
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2
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−
i
(
4
+
2
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2
⋅
4
+
2
(
2
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-
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(
4
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)
Apply the distributive property.
2
⋅
4
+
2
(
2
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)
−
i
⋅
4
−
i
(
2
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2
⋅
4
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2
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2
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)
-
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⋅
4
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Simplify and combine like terms.
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Simplify each term.
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8
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4
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2
8
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4
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2
Add
8
8
and
2
2
.
10
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4
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10
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4
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-
4
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Subtract
4
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4
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from
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4
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.
10
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0
10
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0
Add
10
10
and
0
0
.
It is in the simplest form you can't divide anything by one really
26+35+10+18+15+37+25+20+15/9= 22.33
Let the x represent the unknown number.
"2 times a number" is 2x
"The sum of 2 times a number and 11" is 2x + 11
"The sum of 2 times a number and 11 is -7" is 2x + 11 = -7
Now we solve the equation for x to find the unknown number.
2x + 11 = -7
Subtract 11 from both sides.
2x = -18
Divide both sides by 2.
x = -9
Answer: The number is -9.
Check: 2 times -9 = -18
-18 + 11 = -7
The answer is correct.
6/6+ 12*180
= 1+ 2,160
= 2,161
The final answer is 2,161~
