2t-4s
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2s + s + 12 =132 ie 3s = 132 -12 3s = 120 s = 40
3s + 4t + 2s + 5s + 6tGroup all of the like 's' terms & 't' terms together:(3s+2s+5s) + (4t + 6t)10s + 10t or 10(s+t)
2Al+3S--->Al2S3
To solve the equation 2s + s + 12 = 132, you first combine like terms on the left side. This gives you 3s + 12 = 132. Next, you isolate the variable by subtracting 12 from both sides to get 3s = 120. Finally, you divide by 3 on both sides to find that s = 40.
5s - 3 = 3s - 92s = -6s = -3