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4(x+x+7)-2x+7-4 by substituting x=1 and x=2
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4(x+x+7)-2x+7-4 by substituting x=1 and x=2

User Dogsgod
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2 Answers

6 votes
4(x+x+7)-2x+7-4
Substitute x with 1
4(1+1+7)-2(1)+7-4
=4(2+7)-2+7-4
=4(9)-2+7-4
=36-2+7-4
=34+7-4
=41-7
=34

4(x+x+7)-2x+7-4
Substitute x with 2
4(2+2+7)-2(2)+7-4
=4(4+7)-4+7-4
=4(11)-4+7-4
=44-4+7-4
=40+7-4
=47-4
=43. Hope it help!
User Sitakant
by
7.8k points
1 vote
4(x+x+7) x=1
4(1+1+7)
4+4+28 = 36

(-2x+7-4) x=2
-2(2)+7-4
-4+7-4 = -1

User JerryZhou
by
8.0k points
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