Y = 4
3x + 4x = 43
3(9) + 4x = 43
27 + 4x = 43
4x = 43-27
4x = 16
16/4 = x
4=x
x=4
Really You Can Just Add It To Get The Answer 48.99 + 7.6 = 56.59
Answer:
x = 4
Step-by-step explanation:
We assume your equation is intended to be ...
2^(2x+7) = 2^15
Equating exponents gives ...
2x +7 = 15
2x = 8 . . . . . . subtract 7
x = 4 . . . . . . . divide by 2
The value of x is 4.
<span>Write the decimal number as a fraction
(over 1)
4.3 = 4.3 / 1
Multiplying by 1 to eliminate 1 decimal places
we multiply top and bottom by 1 10's
Numerator (N)
N = 4.3 × 10 = 43
Denominator (D)
D = 1 × 10 = 10
N / D = 43 / 10
Simplifying our fraction
= 43/10
= 43/10
= 4 3/10</span><span>
</span>