2x + 7 = 3x - 7
3x - 2x = 7 + 7
x = 14
2x + 7 + 12y + 1 = 180
2(14) + 12y + 8 = 180
28 + 12y + 8 = 180
36 + 12y = 180
12y = 180 - 36 = 144
y = 144/12 = 12
x = 14, y = 12
<span>4x + 7 - 9 = -14
</span><span>4x - 2 = -14
4x = -12
x = -12/4
x = -3</span>
Answer:
Step-by-step explanation:
It is required to find the value of t for the given expression. The expression is :
It is simply based on calculations. Multiplying both equations by 7. We get :
On RHS, 7 will cancel out. Thus we get :
Since, 4 × 7 = 28
So, the value of t is .
Plug in 500 for h in the equation and you get:
e=3 (500)
e=1500