2 years ago

I NEED HELP PLS WHOEVER CAN ANSWER THIS CORRECTLY I WILL MAKE THEM THE BRAINLIEST

Mathematics

1 answer:

lbvjy [14]2 years ago

4 0

Answer:

1) 6

2) Ron is 12 and his. father is 36

3) Duke is 50 and Mae is 10 years old

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2x + 10 + 3x = 7x + 12

wlad13 [49]

Answer:

Step-by-step explanation:

$2x+10+3x=7x+12\qquad\text{combine like terms}\\\\(2x+3x)+10=7x+12\\\\5x+10=7x+12\qquad\text{subtract 10 from both sides}\\\\5x+10-10=7x+12-10\\\\5x=7x+2\qquad\text{subtract}\ 7x\ \text{from both sides}\\\\5x-7x=7x-7x+2\\\\-2x=2\qquad\text{divide both sides by (-2)}\\\\\dfrac{-2x}{-2}=\dfrac{2}{-2}\\\\x=-1$