Question

Solve to find the value of x.

Answer 1

x=12

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 :)