montasia21
montasia21
25-05-2018
Mathematics
contestada
Solve 7x - 4 = 5x + 15 for x.
Respuesta :
impossiblestargirl
impossiblestargirl
25-05-2018
7x-4=5x+15
-5x on both sides
2x-4=15
add four to both sides
2x=19
divide both sides by 2 to isolate x
x=9.5
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