Answer:
d, To undo addition, you can use multiplication
Step-by-step explanation:
a, To remove a whole number next to the variable, multiply both sides by that number
1 pint = 2 cups
1 pint x 4 & 2 cups x 4
4 pints = 8 cups
9.12/8
1.14
$1.14 per cup
The absolute value of 78 is < the absolute value of -222
Multiply 2nd equation by 3 and add to first
9x-3y=-2
<u>-9x+3y=-9 +</u>
0x+0y=-7
0=-7
false
no solution
these lines aer paraalell so no solution
1. C
2.A
Hope this helps, good luck :D
