3x + 4y = 8
How do I solve this

y= (-3x+8)/4

x = (-4 +8)/3

Step-by-step explanation:

3x + 4y = 8

-3x               -3x

4y = -3x +8     divide ALL by 4

y= (-3x+8)/4

3x + 4y = 8

    -4y          -4y

3x = -4 +8     divide ALL by 3

x = (-4 +8)/3

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

have a nice day!