Question

161 - a= 15170.y = 210​

Answer 1

161 - a = 151

- a = 151 - 161

- a = - 10

a = 10

70 × y = 210

70y : 70 = 210 : 70

y = 3

Answer 2

It seems like you're trying to solve a system of equations. Let's break it down step by step.

You have two equations:

1. 161 - a = 15170
2. y = 210

First, let's solve equation (2) for y, as it's already pretty straightforward: y = 210

Now, let's solve equation (1) for a: 161 - a = 15170

To isolate 'a,' you can subtract 161 from both sides of the equation: -a = 15170 - 161

Now, calculate the right side: -a = 15009

To get 'a' by itself, you can multiply both sides by -1 (or simply change the sign): a = -15009

So, the solution to the system of equations is: a = -15009 y = 210