3.5x=42
x represents the length, since the formula to find area of a rectangle is width times length.
Find a common denominator...
1/5 = 7/35
7/35 = 7/35
6/25 = ... can't have 35 as a denominator. Not equivalent.
Answer:
4x^5z^7
Step-by-step explanation:
Multiply the whole numbers and add the exponents with the same base.
Okay Let's say
2x + 3 = 45
-3 -3
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2x = 42
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2 2 x = 21