Answer:
Step-by-step explanation:
2x - 10 + 65 - x = 90
x = 90 + 10 - 65
x = 100 - 65
x = 35
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check
2 * 35 - 10 + 65 - 35 = 90
70 - 10 + 65 - 35 = 90
90 = 90
the answer is good
2x-10+65-x=90
x+55=90
x=90-55
x=35
