Question

Solve to find the value of x.

Answer 1

Answer:

x=12

Step-by-step explanation:

We know that a right angle is 90 degrees. So we can make the equation $35+4x+7=90.$ Now, we can solve fore X! We can combine 35 and 7 to make the equation $4x+42=90$. In order to isolate x we have to subtract 42 from both sides, getting us the equation $4x=48.$ Now, in order to isolate x we must divide each side by 4, getting us the equation $12=x$.  To prove that x=12, we can subsitute x for 12.  This means that we can do $35+4(12)+7=90. Or, 35+48+7 =90,$ which simplified, is 90=90, making x=12 true. Hope this helps :)