2x + y = 5
x − 2y = 10
y = 5 − 2x
x − 2(5 − 2x) = 10
x − 10 + 4x = 10
5x − 10 = 10
<em>add 10 to each side</em>
<em>5x-10+10 = 10 + 10</em>
<em>5x=20</em>
5x = 0 <em>this is the error</em>
He needs to add 10 to each side
Answer:
ones
Step-by-step explanation:
<h3>
Answer:</h3>
All real numbers are solutions.
Step-by-step explanation:
Let's solve your equation step-by-step.
15+w−12=15−12+w
Step 1: Simplify both sides of the equation.
15+w−12=15−12+w
Simplify: (Show steps)
w+3=w+3
Step 2: Subtract w from both sides.
w+3−w=w+3−w
3=3
Step 3: Subtract 3 from both sides.
3−3=3−3
0=0
i hope i helped
Answer:
No, the correct answer of 4.9+0.03 would be 4.93