1.) 16x + 5 = 59 + 7x
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Simplify
16x + 5 = 7x + 59
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Subtarct 7x on each side
16x + 5 - 7x = 7x + 59 - 7x
9x + 5 = 59
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Subtract 5 from each side
9x + 5 - 5 = 59 - 5
9x = 54
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Divide by 9 on each side
9x ÷ 9 = 54 ÷ 9
x = 6 is your answer
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Now due to times sake im only gonna put the answers for 2 and 3 not the work, if you would like the work please contact me
2.) 3x-12=2x+5
x = 17
3.) 10x+6=7+9x
x = 1