9(x+5) +7(x+3)
9y +4y -- 2Y + y
the first one simplified is 16x+66 and x=4.125
and the second one is is 14y-2y
To simplify the expression 9(x+5) + 7(x+3), we need to apply the distributive property to remove the parentheses.
Step 1: Distribute 9 to (x+5) and distribute 7 to (x+3).
9(x+5) + 7(x+3) = 9x + 45 + 7x + 21
Step 2: Combine like terms.
Combine the terms with x and the constant terms separately.
9x + 45 + 7x + 21 = (9x + 7x) + (45 + 21)
Combine the x terms (9x + 7x) = 16x, and combine the constant terms (45 + 21) = 66.
Finally, we get:
16x + 66