1. **Problem 1:** Combine like terms in the expression represented by the bars: $y + y + y + 2$. 2. The like terms are the three $y$s. Adding them gives: $$y + y + y = 3y$$ 3. The constant term $2$ remains as is. 4. So, the equivalent expression is: $$3y + 2$$ 1. **Problem 2:** Combine like terms in the 2x4 grid: First row: $4 + x + x + x$ Second row: $x + x + x - 3$ 2. Combine the $x$ terms in the first row: $$x + x + x = 3x$$ So first row becomes: $$4 + 3x$$ 3. Combine the $x$ terms in the second row: $$x + x + x = 3x$$ So second row becomes: $$3x - 3$$ 4. Now combine the two rows: $$(4 + 3x) + (3x - 3) = 4 + 3x + 3x - 3 = (3x + 3x) + (4 - 3) = 6x + 1$$ 1. **Problem 3:** Combine like terms in the expression: $-12 + m + m$ 2. Combine the $m$ terms: $$m + m = 2m$$ 3. So the equivalent expression is: $$-12 + 2m$$