Answer:
42
Step-by-step explanation:
We know that 10x + 6y = 7, and so
6(10x + 6y) = 6(7) = 42
Answer:
m = 
Step-by-step explanation:
To find the slope of most lines, we should rearrange the equation into the slope-intercept form or y = mx + b.
So,
2x + 4y = 8
4y = -2x + 8



The slope is the coefficient of the x term, so
m = 
Answer:
x = 48
Step-by-step explanation:

Answer:
$225
Step-by-step explanation:
mark rate = 80%
original price = $125
mark amount = 80% of $125
=80/100 *125
=10000/100
=$100
final price = $125 + $100
=$225
Try and make x the subject of the formula
x/4 + 12 = -2
x/4 = -2-12 (opposite operations)
x/4 = -14
x = -14 *4 (multiply)
x= -56