6x + 9
First, simplify x
3x + -3x + 5x = 6x
Then, simplify the rest of the numbers:
2 + 7 = 9
Then make the equation:
6x + 9
3t + 15 + 5t - 2t - 4
6t + 15 - 4
6t + 11
You can perform all kind of operation that are one the inverse of the other, so that the value won't change. For example, you can multiply and divide by 2:
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Or add and subtract 5:
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Answer:
y=1
Step-by-step explanation:
y= 4 - 2x
y= -5 + 4x
4 - 2x = -5 + 4x
4 + 5 = 4x +2x
9 = 6x
9/6 = x
3/2 = x
y= 4 -2(3/2)
y = 4 - 3
y = 1