Answer: for equation 1 is 5, 2 and 0
Step-by-step explanation:
Step 1: you know the answer to this eqution is 7 but you don't know what numbers do you put in place of the variables to get 7 so you have to figure out the numbers.
Step 2: 5x + 2y + 2z = 7 okay so the number is very low and if we multiply 5, 2, or 2 by 2 then we won't get 7 so the answer will most likely be multiply each number by 1 EXCEPT the last 2.
Step 3: so lets change the equation..... 5 x 1 + 2 x 1 + 2 x 0= 7 and lets solve it 5 + 2 + 0 = 7
So your answer is 5, 2 and 0
you can comment on this question an ill answer the rest in the comments
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