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Savatey [412]
3 years ago
9

Solve – 7 = √ 2x – 9.

Mathematics
2 answers:
motikmotik3 years ago
5 0
Add 9 to both sides
9-7=√2x
2=√2x
squqre both sides
4=2x
divide both sides by 2
2=x
Akimi4 [234]3 years ago
4 0

-7 =√2x -9

√2x=9-7

√2x = 2

x= 2/√2

x=√2

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Step-by-step explanation:  Solve by substitution

W + b = 13

rewrite as   b = 13 - w  and substitute that value for b in the second equation

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