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( 1) 4z + 3 = 6 + 2z (2) (2x)/3 +1 = (7...

( 1) `4z + 3 = 6 + 2z` (2) `(2x)/3 +1 = (7x)/15 + 3`

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`1) 4z+3=6+2z`
`4z-2z=6-3`
`2z=3`
`z=3/2`
`2) 2/3x+1=7/15x+3`
`2/3x-7/15x=3-1`
`(10x-7x)/15=2`
`3x/15=2`
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