Answer: y= −3
/10
x + 2
/5
Step-by-step explanation:
Let's solve for y.
−3(x+y)+4=7y
Step 1: Add -7y to both sides.
−3x−3y+4+−7y=7y+−7y
−3x−10y+4=0
Step 2: Add 3x to both sides.
−3x−10y+4+3x=0+3x
−10y+4=3x
Step 3: Add -4 to both sides.
−10y+4+−4=3x+−4
−10y=3x−4
Step 4: Divide both sides by -10.
−10y
/−10 = 3x−4
/ −10
y= −3
/10
x+ 2
/5
