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2(x+7)=3(2x-5)
2x+14=6x-15
14+15=6x-2x
29=4x |:4
7,5=x
3(x-5)+7=x+1
3x-15+7=x+1
3x-8=x+1
3x-x=1+8
2x=9 |:2
x=4,5
2x+14 = 6x-15
2x-6x = -15-14
-4x = -29 //:(-4) obustronnie dzielimy przez -4
x = 7,25
3(x-5)+7=x+1
3x-15+7 = x+1
3x-8 = x+1
3x-x = 1+8
2x = 9 //:2 obustronnie dzielimy przez 2
x = 4,5