Answer:
Second Option, m+7n+30
Step-by-step explanation:
First I'd combine the m terms
22+5m-4m+7n-8
5m-4m
=1m
22+1m+7n+8
Now the numbers with no variable
22+1m+7n+8
22 + 8
=30
<em><u>m+7n+30 </u></em>is our final answer
Answer:
Ok?
Step-by-step explanation:
Hi there!

f(x) = 7x - 4
Rewrite f(x) with y:
y = 7x - 4
Swap the x and y variables:
x = 7y - 4
Solve for y:
x + 4 = 7y
y = (x + 4)/7
Multiply 822 x 5 = 4110 +2 = 4112
<em>9</em><em>.</em><em>8</em><em> </em><em>+</em><em>12x</em><em>+</em><em>y-7</em>
<em>2</em><em>.</em><em>8</em><em>+</em><em>12x</em><em>+</em><em>4</em><em>y</em>