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2(2x - 4) + x = 7 solve by combining like terms show all steps plz
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2(2x - 4) + x = 7 solve by combining like terms show all steps plz
asked
Dec 28, 2018
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2(2x - 4) + x = 7 solve by combining like terms show all steps plz
Mathematics
high-school
Alhalama
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Alhalama
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2(2x - 4) + x = 7
Distribute the 2
4x - 8 + x = 7
combine like terms
5x - 8 = 7
add 8 to both sides
5x = 15
divide both sides by 5
x =3
CHECK
2(2*3-4) + 3 ?=? 7
2(6-4) + 3 ?=? 7
2(2) + 3 ?=? 7
7 = 7 CHECKS
Rubentd
answered
Dec 31, 2018
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Rubentd
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3
votes
2
(
2x−4
)
+x
=7
2
(
2x
−4
)
+x
=7
5x
−8
=7
5x
−8
+8
=
7+8
5x
=15
5x
5
=
155
x=3
Louis Ingenthron
answered
Jan 2, 2019
by
Louis Ingenthron
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