X-30% x = 7, (1 + 35%) x = 270%, 15-10% x = 1 The process. Thank you

x-30%x=7
0.7x=7
x=7÷0.7
x=10
(1+35%)x=270%
1.35x=2.7
x=2.7÷1.35
x=2
The third question is incomplete

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