The addition property of equality justifies this. You could also say that she simply subtracted 7, and then it would be the subtraction property of equality. This is the case because if you add or subtract (or multiply or divide) the same number on both sides of an equation, the equation will still be the same.
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Answer:
22,-15 ................ maybe
Answer:
4 x + 4 y = 1 , 6 x − y = 1 2 x + y = − 2 , x + 2 y = 2 x + 2 y = 4 , x − y = − 3
Hoped I helped
Answer:
3 cm
Step-by-step explanation:
Set up an equation that solves for the surface area, "112
" :
10(2)+10(2)+2x+2x+10x+10x = 112
20+20+4x+20x = 112
24x+40=112
24x=72
x=3
So, 3 cm.
Answer:
add a photo please
Step-by-step explanation:
I cant solve it without knowing the choices
