Answer:
1/49
Step-by-step explanation:
7^2 = 49
7^-2 = reciprocal of 49 = 1/49
Answer:
x = -15
Step-by-step explanation:
In fractional equations we cross multiply the expressions:
In cross multiplying the denominator of the first fraction is multiplied with the numerator of the second fraction and vice versa:
-2x = 30 divide both sides by -2
x = -15
7. 20
8. 680
9. 700
10. 4,000
11. 106,000
12. 5,800
Answer:
3x+3
Step-by-step explanation:
