Question

Needs to be submitted soon pls help! ASAP! Thank u (also step by step explanation if can)

Answer 1

Answer:

$7$

Step-by-step explanation:

$3x+12x+12=7\\15x+12=7\\15x=-5\\x=\frac{1}{3}$

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$3(\frac{1}{3} )+4y=7\\1+4y=7\\4y=6\\y=1.5$

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$3(\frac{1}{3}) +4(1.5)=7$